メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.170522906568 34.957516324122, 137.170654754997 34.9577984529064, 137.170745178488 34.9579909293125, 137.170799112806 34.9580970617897, 137.169325034982 34.9585100802201, 137.169061059425 34.9579641284915, 137.168806756564 34.9574584606964, 137.169203381283 34.9573009795609, 137.169217652219 34.9573225318334, 137.169407331071 34.9572429444633, 137.169482170984 34.9573997169385, 137.1695253757 34.9573817562236, 137.170264620236 34.9570500989882, 137.170522906568 34.957516324122)) ^^http://www.opengis.net/ont/geosparql#wktLiteral