メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.041214039377 42.9139268303643, 143.041792665546 42.9139768297675, 143.042639585666 42.9140404688075, 143.042441818559 42.9153967826138, 143.04158474903 42.9153376432792, 143.040788287431 42.9152775864041, 143.040028922411 42.9152150890033, 143.040099962373 42.9147165782964, 143.040186245698 42.9141194273471, 143.040225293141 42.9138468324658, 143.040232933725 42.9137669527793, 143.040238590323 42.9137079743815, 143.040239959811 42.9136991739968, 143.040252846868 42.9136152367456, 143.041242786618 42.9136850317528, 143.041214039377 42.9139268303643)) ^^http://www.opengis.net/ont/geosparql#wktLiteral