メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.182656602911 34.2214945272943, 135.181080513508 34.2219762001471, 135.18091079371 34.2213234192779, 135.181729820974 34.2206439945935, 135.181948430646 34.2208351999884, 135.182644439496 34.2214809230378, 135.182656602911 34.2214945272943)) ^^http://www.opengis.net/ont/geosparql#wktLiteral