メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.128341392261 43.6670477273293, 145.127325614456 43.666586238953, 145.127393251373 43.6665177670317, 145.127491380072 43.6664184646801, 145.127550617646 43.6663201777586, 145.127698565891 43.6661282747879, 145.12785198998 43.6659293425734, 145.12800257393 43.6657358615429, 145.128168489118 43.665522656458, 145.128432293623 43.6651850139396, 145.129037104566 43.6653785372601, 145.129342413956 43.6654833814108, 145.129014678849 43.6659871134524, 145.128467174159 43.6668622544481, 145.128341392261 43.6670477273293)) ^^http://www.opengis.net/ont/geosparql#wktLiteral