メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.62377635942 35.3634445459185, 136.623400037276 35.3633743339553, 136.623377359322 35.3619250927788, 136.623658159365 35.3619129047734, 136.62374964598 35.3619099357744, 136.623763813688 35.3625107670891, 136.623783217363 35.3628555688425, 136.62355250528 35.3628523487822, 136.623551601723 35.3629875545071, 136.623785566379 35.3629928317116, 136.623782243596 35.3631557021566, 136.62377635942 35.3634445459185)) ^^http://www.opengis.net/ont/geosparql#wktLiteral