メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.916584855875 43.5421759864466, 141.91704107769 43.5424391639889, 141.916663753065 43.5427868752424, 141.916680234143 43.5427961001858, 141.916262775112 43.5431932725617, 141.916023502961 43.5434209172879, 141.915570611891 43.5438517742772, 141.915082858344 43.5435947916183, 141.914790136336 43.543440594748, 141.915503987569 43.5427725970237, 141.916281763133 43.5420447584876, 141.916307025543 43.5420128344219, 141.916477793448 43.5421142110483, 141.916584855875 43.5421759864466)) ^^http://www.opengis.net/ont/geosparql#wktLiteral