メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((132.7125000 34.5291667, 132.7187500 34.5291667, 132.7187500 34.5333333, 132.7125000 34.5333333, 132.7125000 34.5291667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral