メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.765415504924 35.4145977385679, 136.765309432759 35.4145993253864, 136.765304898577 35.4145421299707, 136.765102416458 35.4145394906436, 136.765097306489 35.4145986264996, 136.764400659897 35.4145904138323, 136.764399574501 35.4143929875219, 136.764544979846 35.4143869893053, 136.764553772028 35.414183962016, 136.764723080248 35.4141801544122, 136.764730530196 35.4141174703505, 136.765404321806 35.4141021919721, 136.765475646857 35.4140995054952, 136.765478105922 35.4143240459154, 136.765404788487 35.4143294741334, 136.765415504924 35.4145977385679)) ^^http://www.opengis.net/ont/geosparql#wktLiteral