メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.78221746448 34.642421619865, 135.782202844282 34.6430397031057, 135.781923597435 34.6430392038126, 135.781912735865 34.6424631924599, 135.781864572454 34.6424519787119, 135.78188056772 34.642002651974, 135.782046117759 34.6420152035596, 135.782219113227 34.6420073423286, 135.78221746448 34.642421619865)) ^^http://www.opengis.net/ont/geosparql#wktLiteral