メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.93184400468 35.0885922710216, 136.931264563364 35.0897098885423, 136.931017146746 35.0896247537916, 136.929692402942 35.0891373472689, 136.930018078664 35.0884983604265, 136.929926582233 35.0885181845097, 136.930249897019 35.0880310333874, 136.931651437763 35.0885244756642, 136.93184400468 35.0885922710216)) ^^http://www.opengis.net/ont/geosparql#wktLiteral