メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.916686489484 43.5408878019899, 141.917120608775 43.5411382568639, 141.917374096797 43.5412844935729, 141.917500480099 43.541357364491, 141.917924657128 43.5416020914957, 141.917432537642 43.5420784122821, 141.91704107769 43.5424391639889, 141.916584855875 43.5421759864466, 141.916477793448 43.5421142110483, 141.916307025543 43.5420128344219, 141.916281763133 43.5420447584876, 141.915746640458 43.5417419305485, 141.915270237004 43.5414722900333, 141.914550021235 43.5410744006567, 141.915523725017 43.5401870473453, 141.916686489484 43.5408878019899)) ^^http://www.opengis.net/ont/geosparql#wktLiteral