メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.2375000 44.1000000, 145.2437500 44.1000000, 145.2437500 44.1041667, 145.2375000 44.1041667, 145.2375000 44.1000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral