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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Bob Probst</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Charles V Greener</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Diane vS Levy</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Anne Loucks</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Jane Irwin</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Jane S Park</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Jennifer M Kasten</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>John C Robak</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>John H Buehler</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Dorothy H Gardner</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Ellis M Goodman</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Angela Korompilas</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>John K Greene</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>James W DeYoung</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Laura M Linger</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Michael J McMurray</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Nancy Gidwitz</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Neville F Bryan</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Pam F Szokol</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Robert E Shaw</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Joseph P Gromacki</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Gregory K Jones</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Harrison I Steans</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Robin T Colburn</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Steven J Gavin</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Todd Kaplan</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Tom Skilling</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>William E Moeller</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>William J Hagenah</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>M James Leider</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Maria Smithburg</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Ryan S Ruskin</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Sharon Brady</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Steve Fradkin</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Michael J Busch</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Lois L Morrison</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Gillian Growdon</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Christopher Merrill</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>George A Peinado</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Daren Serrao</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Heidi B Capozzi</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Gregory Moerschel</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Andrew J Warzecha</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Arthur J Gibson</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Anne Leventry</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>James Robinson</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
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        <OtherCompensationAmt>0</OtherCompensationAmt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Jonathan S Holloway</BusinessNameLine1Txt>
        </BusinessName>
        <TitleTxt>Board Member</TitleTxt>
        <AverageHoursPerWeekRt>2.0</AverageHoursPerWeekRt>
        <IndividualTrusteeOrDirectorInd>X</IndividualTrusteeOrDirectorInd>
        <ReportableCompFromOrgAmt>0</ReportableCompFromOrgAmt>
        <ReportableCompFromRltdOrgAmt>0</ReportableCompFromRltdOrgAmt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Martha Boudos</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Christopher Girgenti</BusinessNameLine1Txt>
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        <TitleTxt>Board Member</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Jean M Franczyk</BusinessNameLine1Txt>
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        <TitleTxt>President and Chief Executive Officer</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Gregory Mueller</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Thomas J Nissly</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>James F Boudreau</BusinessNameLine1Txt>
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      </Form990PartVIISectionAGrp>
      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Harriet Resnick</BusinessNameLine1Txt>
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        <TitleTxt>Vice President, Visitor Exp &amp; Business Develop</TitleTxt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Aida Giglio</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Jennifer Schwarz Ballard</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Frederick R Spicer Jr</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
          <BusinessNameLine1Txt>Andrew Bunting</BusinessNameLine1Txt>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
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        <BusinessName>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
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      <Form990PartVIISectionAGrp>
        <BusinessName>
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      <ContractorCompensationGrp>
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          <BusinessNameLine1Txt>Frederick R Spicer Jr</BusinessNameLine1Txt>
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        <TitleTxt>Executive VP &amp; Director</TitleTxt>
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          <BusinessNameLine1Txt>Stephen M Ball</BusinessNameLine1Txt>
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        <TitleTxt>Associate Vice President, Development</TitleTxt>
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          <BusinessNameLine1Txt>Kayri Havens</BusinessNameLine1Txt>
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        <TitleTxt>Senior Director, Plant Science and Conservation</TitleTxt>
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        <BusinessName>
          <BusinessNameLine1Txt>Gwen VanderBurg</BusinessNameLine1Txt>
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        <TitleTxt>Sr. Director, Marketing and Communications</TitleTxt>
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        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>26463</NontaxableBenefitsFilingOrgAmt>
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        <FormAndLineReferenceDesc>Schedule J, Part I, Line 4b Supplemental nonqualified retirement plan</FormAndLineReferenceDesc>
        <ExplanationTxt>THE PRESIDENT/CEO, VICE PRESIDENTS, AND CERTAIN OTHER MANAGEMENT POSITIONS PARTICIPATED IN A SUPPLEMENTAL NON-QUALIFIED RETIREMENT PLAN AS DESCRIBED IN SECTION 457 (b). TOTAL CONTRIBUTIONS FOR THE YEAR WERE $88,828 AND ARE INCLUDED IN PART II.</ExplanationTxt>
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          <BusinessNameLine1Txt>Illinois Finance Authority</BusinessNameLine1Txt>
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        <BondReferenceCd>A</BondReferenceCd>
        <OwningBondFinancedPropertyInd>false</OwningBondFinancedPropertyInd>
        <AnyLeaseArrangementsInd>false</AnyLeaseArrangementsInd>
        <MgmtContractBondFincdPropInd>false</MgmtContractBondFincdPropInd>
        <AnyResearchAgreementsInd>false</AnyResearchAgreementsInd>
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        <BondReferenceCd>A</BondReferenceCd>
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        <ExceptionToRebateInd>true</ExceptionToRebateInd>
        <VariableRateIssueInd>true</VariableRateIssueInd>
        <HedgeIdentifiedInBksAndRecInd>true</HedgeIdentifiedInBksAndRecInd>
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          <BusinessNameLine1Txt>The Northern Trust</BusinessNameLine1Txt>
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        <HedgeTerminatedInd>false</HedgeTerminatedInd>
        <GrossProceedsInvestedInGICInd>false</GrossProceedsInvestedInGICInd>
        <GrossProceedsInvestedInd>false</GrossProceedsInvestedInd>
        <WrittenProcToMonitorReqsInd>true</WrittenProcToMonitorReqsInd>
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        <BondReferenceCd>A</BondReferenceCd>
        <ProceduresCorrectiveActionInd>true</ProceduresCorrectiveActionInd>
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        <FormAndLineReferenceDesc>Schedule K, Part V Different Procedures to Undertake Corrective Action</FormAndLineReferenceDesc>
        <ExplanationTxt>Issuer name: Illinois Finance Authority Part IV, Line 2B: Issuer Name: Illinois Finance Authority - The Society met the two-year exception for construction issues.</ExplanationTxt>
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        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <ContributionCnt>44</ContributionCnt>
        <NoncashContributionsRptF990Amt>2682082</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>Market value</MethodOfDeterminingRevenuesTxt>
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      <OtherNonCashContriTableGrp>
        <NonCashCheckboxInd>X</NonCashCheckboxInd>
        <Desc>MARKET VALUE OF DONATED BEVERAGES, PLANTS, TREE SERVICES, AIRLINE TRAVEL, HOTEL, LEGAL, AV EQUIPMENT</Desc>
        <ContributionCnt>14</ContributionCnt>
        <NoncashContributionsRptF990Amt>1343738</NoncashContributionsRptF990Amt>
        <MethodOfDeterminingRevenuesTxt>Market value</MethodOfDeterminingRevenuesTxt>
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      <Form8283ReceivedCnt>0</Form8283ReceivedCnt>
      <AnyPropertyThatMustBeHeldInd>false</AnyPropertyThatMustBeHeldInd>
      <ReviewProcessUnusualNCGiftsInd>true</ReviewProcessUnusualNCGiftsInd>
      <ThirdPartiesUsedInd>false</ThirdPartiesUsedInd>
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        <FormAndLineReferenceDesc>Schedule M, Part I Explanations of reporting method for number of contributions</FormAndLineReferenceDesc>
        <ExplanationTxt>Securities - Publicly traded - NUMBER OF CONTRIBUTIONS Other - MARKET VALUE OF DONATED BEVERAGES, PLANTS, TREE SERVICES, AIRLINE TRAVEL, HOTEL, LEGAL, AV EQUIPMENT NUMBER OF CONTRIBUTIONS</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 4d Description of other program services</FormAndLineReferenceDesc>
        <ExplanationTxt>(Expenses $ 5,961,068 including grants of $)(Revenue $ 2,651,764) VISITOR SERVICES: 1,045,721 PEOPLE VISITED THE GARDEN IN 2018, FROM THROUGHOUT THE CHICAGO AREA, THE MIDWEST, THE NATION AND THE WORLD. THE GARDEN FEATURES A WIDE VARIETY OF INDOOR AND OUTDOOR EVENTS, ACTIVITIES, PROGRAMMING AND EXHIBITIONS. THE GARDEN ALSO HOSTS DOZENS OF FLOWER SHOWS AND SALES, AND IS THE SITE OF EDUCATIONAL PROGRAMMING FOR VISITORS OF ALL AGES AND WEEKEND FAMILY CLASSES.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 4d Description of other program services</FormAndLineReferenceDesc>
        <ExplanationTxt>(Expenses $ 1,865,728 including grants of $) MEMBERSHIP REVENUE</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 4d Description of other program services</FormAndLineReferenceDesc>
        <ExplanationTxt>(Expenses $- 80,394 including grants of $)(Revenue $ 383,543) OTHER INCOME, BUSINESS CODE: 900099</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part III, Line 4d Description of other program services</FormAndLineReferenceDesc>
        <ExplanationTxt>(Expenses $ including grants of $)(Revenue $ 3,410,204) GOVERNMENT GRANTS</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 3 Delegation of management duties</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CHICAGO HORTICULTURAL SOCIETY CONTRACTS WITH SODEXO, INC. TO MANAGE AND OPERATE FOOD SERVICES AND EVENT NETWORK TO MANAGE AND OPERATE RETAIL SERVICES. THESE MANAGEMENT CONTRACTS REPRESENT A MINOR SHARE OF THE ORGANIZATION'S MANAGEMENT RESPONSIBILITIES.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 11b Review of form 990 by governing body</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPLETED FORM 990, INCLUDING SCHEDULES, WAS DISTRIBUTED TO THE MEMBERS OF THE AUDIT COMMITTEE OF THE BOARD OF DIRECTORS FOR REVIEW. EACH COMMITTEE MEMBER WAS REQUESTED TO REVIEW FORM 990, INCLUDING SCHEDULES, AND ALLOWED THE OPPORTUNITY TO ASK QUESTIONS, OFFER EDITS, AND PROVIDE APPROVAL. SUBSEQUENT TO THE AUDIT COMMITTEE'S APPROVAL, THE FINAL FORM 990, INCLUDING SCHEDULES, WAS MADE AVAILABLE TO THE FULL BOARD OF DIRECTORS FOR REVIEW BEFORE FILING.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 12c Conflict of interest policy</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CHICAGO HORTICULTURAL SOCIETY HAS A CONFLICT OF INTEREST POLICY. EACH BOARD MEMBER MUST FILL OUT AN ANNUAL DECLARATION STATING THAT THEY HAD NO CONFLICTS OR IDENTIFYING THE NATURE OF THEIR INTERESTED PARTY TRANSACTION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15a Process to establish compensation of top management official</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION COMMITTEE (THE COMMITTEE) OF THE BOARD OF DIRECTORS IS RESPONSIBLE FOR THE ANNUAL REVIEW OF THE COMPENSATION OF THE OFFICERS OF THE ORGANIZATION. ALL MEMBERS OF THE COMMITTEE ARE INDEPENDENT IN DETERMINING THE COMPENSATION OF THE PRESIDENT/CEO. THE COMMITTEE EVALUATES THE CEO'S PERFORMANCE AGAINST PREVIOUSLY AGREED UPON CRITERIA, CONSIDERS COMPARABLE MARKET DATA, THEN DEBATES AND DOCUMENTS ITS RECOMMENDATION OF REASONABLE COMPENSATION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 15b Process to establish compensation of other employees</FormAndLineReferenceDesc>
        <ExplanationTxt>THE COMPENSATION COMMITTEE (THE COMMITTEE) OF THE BOARD OF DIRECTORS IS RESPONSIBLE FOR THE ANNUAL REVIEW OF THE COMPENSATION OF THE OFFICERS OF THE ORGANIZATION. ALL MEMBERS OF THE COMMITTEE ARE INDEPENDENT IN DETERMINING THE COMPENSATION OF THE OFFICERS OF THE ORGANIZATION. THE COMMITTEE EVALUATES THE OFFICERS OF THE ORGANIZATION PERFORMANCE AGAINST PREVIOUSLY AGREED UPON CRITERIA, CONSIDERS COMPARABLE MARKET DATA, THEN DEBATES AND DOCUMENTS ITS RECOMMENDATION OF REASONABLE COMPENSATION. IN DETERMINING THE COMPENSATION OF OTHER OFFICERS, THE SAME PROCEDURES ARE PERFORMED, HOWEVER, THE COMMITTEE CONSIDERS THE CEO'S EVALUATION OF THE STAFF'S PERFORMANCE.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Line 19 Required documents available to the public</FormAndLineReferenceDesc>
        <ExplanationTxt>THE CHICAGO HORTICULTURAL SOCIETY PRODUCES AN ANNUAL REPORT AND SUMMARIZED FINANCIAL REPORTS WHICH ARE AVAILABLE ON ITS WEBSITE. THE ORGANIZATION'S GOVERNING DOCUMENTS AND CONFLICT OF INTEREST POLICY ARE AVAILABLE ON ITS WEBSITE.</ExplanationTxt>
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        <FormAndLineReferenceDesc>Form 990, Part VIII, Line 2f Other Program Service Revenue</FormAndLineReferenceDesc>
        <ExplanationTxt>Bequest - Total Revenue: 383543, Related or Exempt Function Revenue: 383543, Unrelated Business Revenue: , Revenue Excluded from Tax Under Sections 512, 513, or 514: ;</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, Line 9 Other changes in net assets or fund balances</FormAndLineReferenceDesc>
        <ExplanationTxt>CHANGE IN FAIR VALUE OF INTEREST RATE SWAPS - 819325; NET REVENUE OF RELATED ORGANIZATION CHICAGOLAND GROWS - 50022;</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, Line 8 Prior period adjustments</FormAndLineReferenceDesc>
        <ExplanationTxt>IN ACCORDANCE WITH THE ADOPTION OF NEW ACCOUNTING PRONOUNCEMENT ASU NO. 2014-09, REVENUE FROM CONTRACTS WITH CUSTOMERS (TOPIC 606), THE CHICAGO HORTICULTURAL SOCIETY RESTATED ITS FINANCIAL STATEMENTS FOR 2017. THE RESULT WAS A ($2,573,396) ADJUSTMENT TO NET ASSETS FOR THE PRIOR PERIOD.</ExplanationTxt>
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