メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.365251163702 40.8264591414505, 140.364310496275 40.8261886672207, 140.363479542667 40.8260371127994, 140.362492716386 40.8258652170503, 140.361362217119 40.8257815859055, 140.359594015347 40.8258039563883, 140.358840031849 40.8257910083519, 140.366491559674 40.8167924756524, 140.367582400733 40.8154161303668, 140.37006020925 40.8207717024521, 140.367427540543 40.8238459638662, 140.366576856762 40.8248701569755, 140.36621149654 40.82531002643, 140.365251163702 40.8264591414505)) ^^http://www.opengis.net/ont/geosparql#wktLiteral