@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/eye_disease>
  skos:prefLabel "eye disease"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/retinal_diseases> .

<https://concepts.sagepub.com/social-science/concept/retinitis>
  skos:prefLabel "retinitis"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/retinal_diseases> .

<https://concepts.sagepub.com/social-science/concept/macular_degeneration>
  skos:prefLabel "macular degeneration"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/retinal_diseases> .

<https://concepts.sagepub.com/social-science/concept/retinal_diseases>
  skos:narrower <https://concepts.sagepub.com/social-science/concept/retinopathy>, <https://concepts.sagepub.com/social-science/concept/retinitis>, <https://concepts.sagepub.com/social-science/concept/macular_degeneration> ;
  skos:exactMatch <https://id.nlm.nih.gov/mesh/D012164.html> ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/eye_disease> ;
  skos:prefLabel "retinal diseases"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/retinopathy>
  skos:prefLabel "retinopathy"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/retinal_diseases> .

<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/retinal_diseases> .