@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/conservation_and_ecology>
  skos:prefLabel "conservation and ecology"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/Arbor_Day> .

<https://concepts.sagepub.com/social-science/concept/agriculture>
  skos:prefLabel "agriculture"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/Arbor_Day> .

<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/Arbor_Day> .

<https://concepts.sagepub.com/social-science/concept/Arbor_Day>
  skos:definition "Arbor day is a nationally celebrated observance that encourages tree planting. It officially takes place in the United States on the last Friday in April, although each state may have its own Arbor Day based on the planting season. [Source: <a href=\"https://sk.sagepub.com/reference/environment/n39.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Environment and Society; Arbor Day</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/conservation_and_ecology>, <https://concepts.sagepub.com/social-science/concept/agriculture> ;
  skos:prefLabel "Arbor Day"@en ;
  a skos:Concept .