メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.310415779781 36.3043311090899, 136.309989746492 36.3045028518843, 136.309649046385 36.3039198129883, 136.309399359677 36.3034778915398, 136.309496178679 36.303438029294, 136.310134570141 36.3032001815314, 136.310264799358 36.3031516500171, 136.31083195437 36.3041858053389, 136.310415779781 36.3043311090899)) ^^http://www.opengis.net/ont/geosparql#wktLiteral