メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.903377148457 37.3948070968198, 136.902879650882 37.3949046865799, 136.902217123012 37.3950652660978, 136.902176899045 37.3947869568917, 136.902107630392 37.3941819284063, 136.902063657163 37.393803925715, 136.903148684916 37.3937712910137, 136.903163820928 37.3941526082703, 136.90322909259 37.3943411427343, 136.903340763795 37.3946087705097, 136.903377148457 37.3948070968198)) ^^http://www.opengis.net/ont/geosparql#wktLiteral