メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.7125000 43.5416667, 144.7187500 43.5416667, 144.7187500 43.5458334, 144.7125000 43.5458334, 144.7125000 43.5416667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral