メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.397192292568 43.0467102517984, 141.397305619865 43.0468084329454, 141.397632436918 43.0471118800261, 141.397088273804 43.0474703808981, 141.396688382095 43.0477419011253, 141.396603781248 43.0478059043557, 141.396492863541 43.0478728756704, 141.396230567495 43.048054904427, 141.395707077989 43.0475091749638, 141.395571238309 43.0473542790679, 141.395483804887 43.0472491154938, 141.395381173228 43.0470574732187, 141.395864082567 43.0468639400022, 141.396288556506 43.0467282741413, 141.396969492499 43.0465404323239, 141.396988571436 43.0465336822941, 141.397192292568 43.0467102517984)) ^^http://www.opengis.net/ont/geosparql#wktLiteral