メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.883387282781 43.0111097903071, 142.883316691404 43.0111741936453, 142.883081939904 43.0113883630285, 142.882946680169 43.011506137727, 142.882516532018 43.01188062425, 142.882124466098 43.0116390040558, 142.882143617056 43.0116211651426, 142.881461361882 43.0112149847134, 142.881579930587 43.0111106872323, 142.881728807609 43.0109796870024, 142.882026945607 43.0107174726928, 142.882277388915 43.0104971560356, 142.882397260828 43.0103917040781, 142.883458348199 43.0110449765059, 142.883387282781 43.0111097903071)) ^^http://www.opengis.net/ont/geosparql#wktLiteral