メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.324685537172 43.0555460835404, 141.324607285029 43.0558705823741, 141.324476655068 43.0564189373513, 141.323692242493 43.0563161649109, 141.323484712137 43.0562898684251, 141.323121460022 43.0562488073523, 141.323249175013 43.0556846768163, 141.323273190902 43.0556120810765, 141.323300007908 43.055493723181, 141.323328980546 43.0553657477575, 141.324224548646 43.0554930528222, 141.324685537172 43.0555460835404)) ^^http://www.opengis.net/ont/geosparql#wktLiteral