@prefix n9j: <http://data.loterre.fr/ark:/67375/N9J> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix isothes: <http://purl.org/iso25964/skos-thes#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

n9j:-PSWBZX9V-S
  skos:prefLabel "languages and linguistics"@en ;
  a skos:Concept ;
  skos:narrower n9j:-DMKJTJ5N-C .

n9j:-concepts
  a isothes:ConceptGroup ;
  skos:prefLabel "concepts"@en ;
  skos:member n9j:-DMKJTJ5N-C .

n9j: a skos:ConceptScheme .
n9j:-DMKJTJ5N-C
  owl:sameAs <https://concepts.sagepub.com/social-science/concept/best_age_to_learn_a_language> ;
  skos:definition "A controversial topic among linguists and researchers is the critical period hypothesis (CPH) and research studies that pertain to the best age in which to learn a language. CPH was first proposed by neurologist Wilder Penfield and coauthor Lamar Roberts in 1959. [Source: Encyclopedia of Bilingual Education; Learning a Language, Best Age]"@en ;
  a skos:Concept ;
  skos:inScheme n9j: ;
  skos:broader n9j:-PSWBZX9V-S ;
  skos:prefLabel "best age to learn a language"@en .