メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.501484133621 40.601215310833, 140.502976758927 40.6013442940988, 140.502790570904 40.6025235698506, 140.502597234123 40.603880258251, 140.500987136135 40.6037412959595, 140.499213635335 40.6036149918287, 140.499252304024 40.6033016502405, 140.499379328713 40.6029945455938, 140.4996875786 40.6022985195056, 140.500004065779 40.6017459786028, 140.500480253146 40.6011077086729, 140.501484133621 40.601215310833)) ^^http://www.opengis.net/ont/geosparql#wktLiteral