メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.210820907778 34.7077533178677, 135.210670078832 34.7082006383003, 135.20974550457 34.7079977005682, 135.209826553793 34.7076613150121, 135.209837112277 34.7076274334246, 135.209912750717 34.707295594159, 135.210868407244 34.707599723611, 135.210820907778 34.7077533178677)) ^^http://www.opengis.net/ont/geosparql#wktLiteral