メタデータ名 K4501
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.1187500 38.5041667, 141.1250000 38.5041667, 141.1250000 38.5083333, 141.1187500 38.5083333, 141.1187500 38.5041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral