メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.298017405749 43.0730729859048, 141.298557200842 43.0735205472681, 141.298483257476 43.0735626221543, 141.298307981198 43.0736621572194, 141.29819455013 43.0737266193768, 141.298116349205 43.0737709793484, 141.297729692507 43.0739907044881, 141.297650616748 43.0740356897043, 141.297548121331 43.0740939128547, 141.297342549716 43.0742106358068, 141.296812318442 43.073771306145, 141.296774827853 43.073739064286, 141.296263441408 43.0733347021349, 141.296931732622 43.0729680191054, 141.296994721046 43.0729334499504, 141.297502003758 43.0726551627331, 141.298017405749 43.0730729859048)) ^^http://www.opengis.net/ont/geosparql#wktLiteral