メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.359908884217 38.3291736976309, 140.360378133797 38.3289604901937, 140.361148514261 38.3301838283079, 140.360303828581 38.3305616368746, 140.36020689974 38.3306130503183, 140.359752044103 38.3308578486407, 140.359171323824 38.3311713966839, 140.358995747521 38.3309768401607, 140.358723472894 38.3306399913725, 140.357585735557 38.3293212502869, 140.357717279243 38.3292302807281, 140.357838207963 38.3292258451448, 140.35896494438 38.3291843790621, 140.35989281123 38.3291512493551, 140.359908884217 38.3291736976309)) ^^http://www.opengis.net/ont/geosparql#wktLiteral