メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.864251010996 35.8442509215189, 139.863856888524 35.844466094998, 139.863078687215 35.8449231586431, 139.862050457933 35.8455304113519, 139.861686938242 35.8451723125847, 139.862316387481 35.8447655188381, 139.862733597423 35.8445083062309, 139.863259799755 35.8441653504208, 139.863581019179 35.8439609718332, 139.863634790949 35.8440136460379, 139.864251010996 35.8442509215189)) ^^http://www.opengis.net/ont/geosparql#wktLiteral