メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.058093717721 34.867046969206, 137.058451429489 34.8675107092927, 137.057982235058 34.8677432683153, 137.057778995988 34.8674662316735, 137.057425255523 34.8676502260324, 137.057281089285 34.8674502899176, 137.057212789113 34.8673413459386, 137.056930121523 34.8669326047865, 137.056195082071 34.8659496002332, 137.056929525462 34.8656117848968, 137.057026826955 34.8655655308338, 137.057799258216 34.8666285005867, 137.058093717721 34.867046969206)) ^^http://www.opengis.net/ont/geosparql#wktLiteral