メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.742462326851 35.6917921184027, 139.743407228861 35.6920753470445, 139.743679765758 35.6921392439823, 139.74375499884 35.6925651260064, 139.743793798991 35.6928127498117, 139.743795857466 35.6928731006417, 139.74384362247 35.6930600996366, 139.743900560196 35.6934348784055, 139.742954917532 35.693129329815, 139.742054049571 35.6928429599263, 139.741990101718 35.6928285807152, 139.740880881577 35.6924994068383, 139.741083635186 35.6920545465299, 139.741187224165 35.6917750248053, 139.741318355918 35.691447076323, 139.742462326851 35.6917921184027)) ^^http://www.opengis.net/ont/geosparql#wktLiteral