メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.796185996421 38.0535699502299, 140.795283790595 38.0535191176259, 140.794399154812 38.0534266111424, 140.792331737922 38.0529596200802, 140.792138044191 38.0529337888801, 140.791713259398 38.0529233605218, 140.791347866647 38.0508839442345, 140.793912769252 38.0505867907098, 140.797045335899 38.0502351281997, 140.796411710023 38.0524730141515, 140.796185996421 38.0535699502299)) ^^http://www.opengis.net/ont/geosparql#wktLiteral