メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.392815145734 38.4476373617665, 140.393021397759 38.4485832836477, 140.393123522663 38.4490517368882, 140.393157776876 38.4492347285115, 140.393166475314 38.4492691096947, 140.393390907663 38.4501551305191, 140.393418506839 38.4504029940035, 140.390933109632 38.450536106655, 140.390655879519 38.4477731034986, 140.390556524573 38.4467826753263, 140.391732681541 38.446598754363, 140.392239802644 38.4465105672546, 140.393282622837 38.4463290842145, 140.39314360324 38.4464590593873, 140.392787054481 38.447508731017, 140.392815145734 38.4476373617665)) ^^http://www.opengis.net/ont/geosparql#wktLiteral