メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.386206386832 38.0325373938269, 139.382652793295 38.03209729517, 139.382466794249 38.0331607365834, 139.379905408433 38.0328592563651, 139.379794732302 38.0333545066029, 139.376084253545 38.0329295671799, 139.376133383429 38.0321499683858, 139.376189248517 38.0308205586952, 139.377364194313 38.0304263913884, 139.379339159893 38.0297886373782, 139.383461536857 38.0284554496946, 139.383516425696 38.0286027194537, 139.383929550938 38.0292313217281, 139.38483613122 38.030565900778, 139.385562397127 38.0315915344758, 139.386206386832 38.0325373938269)) ^^http://www.opengis.net/ont/geosparql#wktLiteral