メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.1437500 35.2458334, 139.1500000 35.2458334, 139.1500000 35.2500000, 139.1437500 35.2500000, 139.1437500 35.2458334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral