メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.322694093517 38.2229648577735, 140.32401758152 38.2232076939434, 140.324838016941 38.2233613299873, 140.3256417754 38.2231734999737, 140.326004600184 38.2237929520902, 140.324757620683 38.2243500944458, 140.324469273025 38.2244732899265, 140.323174578063 38.2250561099476, 140.32178871906 38.2256894774674, 140.320641136441 38.2253298490209, 140.320574178687 38.2253097061626, 140.319850861258 38.2250929840866, 140.319809392295 38.2242826210242, 140.319803756074 38.2241259098804, 140.319790069461 38.223781223689, 140.31974869005 38.2232824048355, 140.319697943334 38.2224213204953, 140.322128847872 38.2228628605127, 140.322694093517 38.2229648577735)) ^^http://www.opengis.net/ont/geosparql#wktLiteral