メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.66464018486 33.2548976008207, 131.665934372205 33.2550588633324, 131.66574217133 33.2561035595726, 131.665736163741 33.2561516370864, 131.665618025606 33.2569076509716, 131.665529226032 33.2573485409499, 131.665480162058 33.257578371545, 131.664254361478 33.257224546015, 131.66286624419 33.2568315367709, 131.662909148867 33.2566231193665, 131.663048903484 33.2557788973484, 131.663103620739 33.2554529660414, 131.66323147987 33.2547155691422, 131.66464018486 33.2548976008207)) ^^http://www.opengis.net/ont/geosparql#wktLiteral