メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.719456236869 36.7144663612049, 140.719691924792 36.7156504248171, 140.71969953565 36.715688597783, 140.719046793971 36.7157641437609, 140.718337318422 36.7158494010324, 140.717142955097 36.7159832445504, 140.717061551061 36.7153378895085, 140.716984563412 36.7146656752801, 140.716870252486 36.7136679085105, 140.71686179402 36.7135938350969, 140.718536145591 36.7133779257764, 140.719217589708 36.7132752768495, 140.719456236869 36.7144663612049)) ^^http://www.opengis.net/ont/geosparql#wktLiteral