メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.58455763373 38.9185637767197, 141.585034164021 38.9187081491934, 141.584785638397 38.9192654709654, 141.584447613282 38.9199941134098, 141.583592961164 38.919977939319, 141.582953053734 38.919966430183, 141.582273440605 38.9199615074443, 141.582007568317 38.9190582717448, 141.581659637073 38.9179071197166, 141.582310106469 38.9177942771522, 141.582916943902 38.9176786152014, 141.58355750947 38.9175580171124, 141.584233760217 38.9174341574661, 141.58455763373 38.9185637767197)) ^^http://www.opengis.net/ont/geosparql#wktLiteral