メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.0125000 34.7666667, 139.0187500 34.7666667, 139.0187500 34.7708334, 139.0125000 34.7708334, 139.0125000 34.7666667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral