@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .

<https://concepts.sagepub.com/social-science/concept/census_tracts>
  skos:definition "Census tracts are small, relatively stable statistical areas that generally contain between 1,500 and 8,000 people, with an optimal population of 4,000. They belong to a hierarchical system for organizing the territory of the United States for census-taking purposes. [Source: <a href=\"https://sk.sagepub.com/reference/humangeography/n27.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Human Geography; Census Tracts</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/urban_geography> ;
  skos:prefLabel "census tracts"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/urban_geography>
  skos:prefLabel "urban geography"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/census_tracts> .

<https://concepts.sagepub.com/social-science/concept/conceptgroup/concepts>
  a skos:Collection, isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member <https://concepts.sagepub.com/social-science/concept/census_tracts> .