メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.062093662425 34.6314523528434, 135.062146705414 34.6319050356818, 135.060882474286 34.6320095044811, 135.060834832031 34.6315500274306, 135.06077897166 34.6310860919243, 135.06204054114 34.6309906554684, 135.062093662425 34.6314523528434)) ^^http://www.opengis.net/ont/geosparql#wktLiteral