@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/unstable_angina>
  skos:prefLabel "unstable angina"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/variant_angina_pectoris> .

<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/variant_angina_pectoris> .

<https://concepts.sagepub.com/social-science/concept/variant_angina_pectoris>
  skos:exactMatch <https://id.nlm.nih.gov/mesh/D000788.html> ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/unstable_angina> ;
  skos:prefLabel "variant angina pectoris"@en ;
  a skos:Concept .