メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((133.516915717409 34.4959257686801, 133.516760111422 34.4959791038698, 133.516119763409 34.496023992527, 133.515922349249 34.4959242131501, 133.514554435056 34.4947980494466, 133.516332529272 34.4927636315804, 133.516915717409 34.4959257686801)) ^^http://www.opengis.net/ont/geosparql#wktLiteral