@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/middle_adulthood>
  skos:definition "Human development is studied by the broad field of psychology and within the subfield of developmental psychology. Developmental psychology is defined as the study of stability and change throughout the life course. [Source: <a href=\"https://sk.sagepub.com/reference/humandevelopment/n411.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Human Development; Middle Adulthood</a>]"@en ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/middle_and_young_adulthood> ;
  skos:prefLabel "middle adulthood"@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/middle_adulthood> .

<https://concepts.sagepub.com/social-science/concept/middle_and_young_adulthood>
  skos:prefLabel "middle and young adulthood"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/middle_adulthood> .