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

<https://concepts.sagepub.com/social-science/concept/nitrous_oxide>
  skos:prefLabel "nitrous oxide"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/nitrogen_oxides> .

<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/nitrogen_oxides> .

<https://concepts.sagepub.com/social-science/concept/nitrogen_oxides>
  skos:definition "Nitrogen oxides are a group of chemical compounds involving the elements of nitrogen and oxygen in different configurations. They include nitric oxide (NO), which usually takes a gaseous state and is the most stable of the oxides. [Source: <a href=\"https://sk.sagepub.com/reference/environment/n772.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Environment and Society; Nitrogen Oxides</a>]"@en ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/nitrous_oxide> ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/pollution> ;
  skos:prefLabel "nitrogen oxides"@en ;
  a skos:Concept .