メタデータ名 C3610
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.0500000 42.7750000, 143.0562500 42.7750000, 143.0562500 42.7791667, 143.0500000 42.7791667, 143.0500000 42.7750000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral