メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.370488518974 34.8227635033921, 137.370744340056 34.822915282003, 137.370805577971 34.8229595525256, 137.370667704166 34.8230616234921, 137.370793057748 34.8233395491731, 137.368169054309 34.8244395611961, 137.367923558614 34.8237354388581, 137.367793639948 34.8233484909759, 137.367414801299 34.8223292654196, 137.367447768794 34.8223206897026, 137.367876487743 34.8222255425424, 137.368215496948 34.8219043864113, 137.368543462396 34.8215643019163, 137.36913100723 34.821926199998, 137.370488518974 34.8227635033921)) ^^http://www.opengis.net/ont/geosparql#wktLiteral