@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/hydrogen_fuel> .

<https://concepts.sagepub.com/social-science/concept/hydrogen_fuel>
  skos:definition "Hydrogen, designated as h on the periodic table of the elements, is the simplest and most abundant of all the elements. A hydrogen atom consists of a single proton and an electron, and has the lowest density of all known matter. [Source: <a href=\"https://sk.sagepub.com/reference/environment/n544.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Environment and Society; Hydrogen Fuel</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/pollution> ;
  skos:prefLabel "hydrogen fuel"@en ;
  a skos:Concept .

<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/hydrogen_fuel> .