メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.186636181256 34.6854717906426, 135.187117073984 34.6855405346419, 135.187480588017 34.6856033399047, 135.187262671307 34.6861682939694, 135.187142799179 34.6864508474409, 135.186259125596 34.6862159011638, 135.185670351756 34.6860036731694, 135.185171679078 34.685797572488, 135.18536232696 34.6854987493296, 135.185522797668 34.6852173221618, 135.185971926237 34.6853479877058, 135.186636181256 34.6854717906426)) ^^http://www.opengis.net/ont/geosparql#wktLiteral