@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_school>
  skos:definition "The rise of schools dedicated to serving the needs of young adolescents began in the early 20th century with the development of the junior high school. As the number of years of compulsory education increased in the United States, the junior high school served as a bridge between elementary school and high school. [Source: <a href=\"https://sk.sagepub.com/reference/educationalreform/n268.xml\" target=\"_blank\" data-id=\"to-sk\">Encyclopedia of Educational Reform and Dissent; Middle School</a>]"@en ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/middle_school_movement> ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/schools>, <https://concepts.sagepub.com/social-science/concept/school_types>, <https://concepts.sagepub.com/social-science/concept/lower_secondary_education> ;
  skos:prefLabel "middle school"@en ;
  a skos:Concept .

<https://concepts.sagepub.com/social-science/concept/schools>
  skos:prefLabel "schools"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/middle_school> .

<https://concepts.sagepub.com/social-science/concept/lower_secondary_education>
  skos:prefLabel "lower secondary education"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/middle_school> .

<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_school> .

<https://concepts.sagepub.com/social-science/concept/school_types>
  skos:prefLabel "school types"@en ;
  a skos:Concept ;
  skos:narrower <https://concepts.sagepub.com/social-science/concept/middle_school> .

<https://concepts.sagepub.com/social-science/concept/middle_school_movement>
  skos:prefLabel "middle school movement"@en ;
  a skos:Concept ;
  skos:broader <https://concepts.sagepub.com/social-science/concept/middle_school> .