メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.350735926427 43.0960332612254, 141.350981792075 43.0960662766003, 141.351344046853 43.0961137789808, 141.351774931656 43.0961734922726, 141.351704797453 43.0964610053112, 141.351624253149 43.0967908441096, 141.351507884899 43.0972275119221, 141.350729122202 43.0971272313241, 141.350496439354 43.0970981866451, 141.349958328408 43.0970270068722, 141.350211036459 43.0959641551201, 141.350735926427 43.0960332612254)) ^^http://www.opengis.net/ont/geosparql#wktLiteral