メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.32931364731 43.0502426193009, 141.330063841465 43.0503010507723, 141.329987594349 43.050981366924, 141.32992913332 43.051427770254, 141.329899806118 43.0516573716583, 141.329896140325 43.0517100895292, 141.328923506039 43.051640934664, 141.328147635247 43.0515926274669, 141.328175983271 43.0513583772422, 141.328236842264 43.0508553086209, 141.32832918453 43.0501773733632, 141.32931364731 43.0502426193009)) ^^http://www.opengis.net/ont/geosparql#wktLiteral