メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.333581828242 43.049657848497, 141.333550894137 43.0499062862422, 141.333519285301 43.0500969082859, 141.333475706681 43.0505117852075, 141.331774314224 43.0504008051627, 141.331834014323 43.0499795877535, 141.331860760569 43.0497553103952, 141.331889162963 43.0495356878366, 141.331946973056 43.0490996870138, 141.332972134529 43.0491742299663, 141.333632992453 43.0492165882646, 141.333614644084 43.0493861470306, 141.333581828242 43.049657848497)) ^^http://www.opengis.net/ont/geosparql#wktLiteral