メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.521243089696 34.6735009004426, 135.521290800775 34.6739077535321, 135.521338212755 34.6743072797473, 135.520607612004 34.6743958339499, 135.520594028985 34.6742892897238, 135.52056009665 34.6740223653543, 135.520532532011 34.6738046271345, 135.520502675433 34.6735702578605, 135.520444723976 34.673114063507, 135.520662907303 34.6731239349008, 135.521178756594 34.6730790513559, 135.52121265361 34.6732561057122, 135.521243089696 34.6735009004426)) ^^http://www.opengis.net/ont/geosparql#wktLiteral