メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.633970006547 42.843964852522, 141.634251412739 42.8444093937457, 141.634532747326 42.8448230567458, 141.633236730562 42.8453005970808, 141.63301997316 42.8453806628066, 141.631466612908 42.8459512513993, 141.630622017622 42.8462479152799, 141.630439927072 42.8461341159898, 141.631102260567 42.8455541519323, 141.631536744103 42.8451971020432, 141.631902208056 42.8448934121351, 141.632312212598 42.8445507859835, 141.632554231251 42.8443382112605, 141.633599908791 42.8434821350846, 141.633632402281 42.8434535442402, 141.633766401518 42.8436502831249, 141.633970006547 42.843964852522)) ^^http://www.opengis.net/ont/geosparql#wktLiteral