メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.766401929492 43.20397274864, 141.766093267708 43.2042967843469, 141.765742388655 43.2046524258581, 141.765711907971 43.2046833133592, 141.765175583056 43.2043989562959, 141.764936192429 43.2042866170636, 141.764969501666 43.2042522462679, 141.764742110557 43.2041358129323, 141.765057348486 43.2037891317153, 141.765385093599 43.2034533653004, 141.766401929492 43.20397274864)) ^^http://www.opengis.net/ont/geosparql#wktLiteral