@prefix rdf: . @prefix rdfs: . @prefix owl: . @prefix skos: . @prefix xl: . @prefix rdag1: . @prefix rda: . @prefix rdaa: . @prefix frbrent: . @prefix foaf: . @prefix ndl: . @prefix dct: . foaf:primaryTopic ; rdf:type ; dct:modified "1997-08-28T16:06:00"; dct:created "1997-04-25"; xl:prefLabel [xl:literalForm "Croft, Hallard T"]; rdfs:label "Croft, Hallard T"; xl:altLabel [xl:literalForm "クロフト, H. T"]; dct:source "幾何学における未解決問題集 / H. T. クロフト [ほか]著 ; 秋山仁 訳","USMC"; skos:exactMatch ; skos:inScheme . rdf:type ; foaf:name "Hallard T Croft".