メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.902192384904 43.469658121096, 141.902078010186 43.4696291529099, 141.901908977656 43.469559687796, 141.901765109302 43.4694503903536, 141.901650854629 43.4693883342757, 141.901128277298 43.4692815094466, 141.900769858756 43.469218711439, 141.90054011694 43.4692203691501, 141.90032639343 43.4684649307557, 141.900245828066 43.4681881709125, 141.902150341526 43.4678855417853, 141.902214706914 43.4681265262142, 141.902356600086 43.4688424680064, 141.902355262532 43.4690747094541, 141.90231860294 43.4693830766047, 141.902222569022 43.4696186893629, 141.902192384904 43.469658121096)) ^^http://www.opengis.net/ont/geosparql#wktLiteral