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日本国内の図書館の緯度経度を取得するSPARQL式。NDLのISIL試行版LODデータセット（ https://www.ndl.go.jp/jp/dlib/standards/opendataset/index.html#ISIL_trial ）が対象。エンドポイントURLは https://lib-lod.tsunagun.org/sparql/isil-lod-jp/query 。Webブラウザ上で利用する場合は https://tsunagun.github.io/lib-lod/sparql/ にアクセスし、下図に従って操作してください。
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| prefix schema: <http://schema.org/> | |
| prefix org: <http://www.w3.org/ns/org#> | |
| prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> | |
| SELECT ?library ?name ?lat ?long | |
| WHERE { | |
| ?library schema:name ?name . | |
| OPTIONAL { | |
| ?library org:hasSite/geo:lat ?lat . | |
| ?library org:hasSite/geo:long ?long . | |
| } | |
| FILTER ( lang(?name) = 'ja' ) | |
| } |
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Webブラウザ上で使用する場合は、 https://tsunagun.github.io/lib-lod/sparql/ を開き、下記の手順でSPARQL式を実行します。