メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.166291274142 34.6629156123832, 135.16638275604 34.6636068757399, 135.165785885736 34.6636560385949, 135.165298054066 34.6636983952673, 135.164968290128 34.6637269920765, 135.164898526279 34.6630243108173, 135.164848914967 34.6624274161501, 135.16621730953 34.662339168328, 135.166291274142 34.6629156123832)) ^^http://www.opengis.net/ont/geosparql#wktLiteral