メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.266725461154 44.0184614770821, 144.266636535528 44.0189882208959, 144.265844353422 44.0189197757535, 144.265064088773 44.0188349800331, 144.265051962019 44.0188337001524, 144.265081266457 44.0183184624712, 144.265097246445 44.0182034669183, 144.26509493857 44.0181353907887, 144.265526803127 44.0181241783874, 144.265968723403 44.0181163688876, 144.26672972724 44.0181162303735, 144.266788386807 44.0181162175107, 144.266725461154 44.0184614770821)) ^^http://www.opengis.net/ont/geosparql#wktLiteral