メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.325693746747 43.1085794792257, 141.326014575428 43.1088961564081, 141.326377335662 43.1092587438334, 141.325651082112 43.1096535961769, 141.325292943913 43.1098446615264, 141.324947087158 43.1100294959407, 141.324559323937 43.1096701465427, 141.324254555639 43.1093453676985, 141.323914776224 43.1090191078955, 141.32357660536 43.1086946181796, 141.323964117712 43.1084779157413, 141.32398356378 43.1084678057648, 141.324294709934 43.1083055497586, 141.324587567896 43.1081465907122, 141.325022172889 43.1079064254179, 141.325356741575 43.1082471977216, 141.325693746747 43.1085794792257)) ^^http://www.opengis.net/ont/geosparql#wktLiteral