@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/visual_acuity>
  skos:prefLabel "visual acuity"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/contrast_sensitivity> .

<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/contrast_sensitivity> .

<https://concepts.sagepub.com/social-science/concept/contrast_sensitivity>
  skos:exactMatch <https://id.nlm.nih.gov/mesh/D015350.html> ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/visual_acuity>, <https://concepts.sagepub.com/social-science/concept/form_perception> ;
  skos:prefLabel "contrast sensitivity"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/form_perception>
  skos:prefLabel "form perception"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/contrast_sensitivity> .