メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.415583174126 34.7749834935404, 135.41557867562 34.7755718695015, 135.415559935556 34.7761222021107, 135.415570456327 34.7767170645371, 135.415206806788 34.776680298475, 135.41435734964 34.7766051726867, 135.414416695994 34.7760395496907, 135.414495976866 34.7754710729656, 135.414564812261 34.7748871957966, 135.414623272887 34.7743389053116, 135.41556893746 34.7744176789601, 135.415583174126 34.7749834935404)) ^^http://www.opengis.net/ont/geosparql#wktLiteral