メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.359046791321 43.0971058031189, 141.359639215128 43.0971783482664, 141.359626653419 43.0972238926529, 141.35953085844 43.0976152907408, 141.359477493183 43.0978206526038, 141.359447943336 43.0979456745347, 141.359365178182 43.098285553748, 141.358331077356 43.0981476143533, 141.357757017158 43.0980791469525, 141.358031437488 43.0969737015418, 141.358613203919 43.0970461669507, 141.359046791321 43.0971058031189)) ^^http://www.opengis.net/ont/geosparql#wktLiteral