メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.287951029332 38.3683653041069, 140.287107704707 38.3684706325891, 140.285894585451 38.3685964783613, 140.285956066848 38.368927013303, 140.284789010565 38.3690727701435, 140.284597597486 38.368053114674, 140.284425863325 38.367257518817, 140.285977487292 38.3670240250306, 140.286813728945 38.3669075520825, 140.286908570275 38.3669093996811, 140.287642734221 38.3668079313666, 140.287951029332 38.3683653041069)) ^^http://www.opengis.net/ont/geosparql#wktLiteral