メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.624698706974 35.3598289964916, 136.62419694924 35.3598280115663, 136.624186700613 35.3597213463683, 136.624161301448 35.3594571483567, 136.624112994835 35.358813482697, 136.62497893299 35.3588195518913, 136.624973621215 35.3591260061608, 136.625246528474 35.3591358209239, 136.625341959529 35.3598301907558, 136.624698706974 35.3598289964916)) ^^http://www.opengis.net/ont/geosparql#wktLiteral