メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.3500000 31.3791667, 130.3562500 31.3791667, 130.3562500 31.3833333, 130.3500000 31.3833333, 130.3500000 31.3791667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral