メタデータ名 C4563
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.4125000 42.8000000, 141.4187500 42.8000000, 141.4187500 42.8041667, 141.4125000 42.8041667, 141.4125000 42.8000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral