メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.450934937132 38.1165235585425, 139.450969448763 38.1166018329828, 139.451187687242 38.1171215026204, 139.451410153808 38.1176027041688, 139.451614731392 38.1181469788846, 139.451663845499 38.1183136837176, 139.450252636037 38.1189782945464, 139.449173144188 38.1180473303662, 139.448084626095 38.1171120663048, 139.449184194897 38.1161252271317, 139.449773050578 38.1156122705381, 139.450325470763 38.1151483161507, 139.450934937132 38.1165235585425)) ^^http://www.opengis.net/ont/geosparql#wktLiteral