メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.184572831803 34.2320870055872, 135.184565555012 34.2324468771026, 135.183904023824 34.232375559093, 135.183488790476 34.2323360256725, 135.183542240348 34.2319635016132, 135.183565479229 34.231848707447, 135.183582194248 34.2317861324002, 135.183763395886 34.2318056533715, 135.183780341883 34.2317278651066, 135.184381083487 34.2318062453348, 135.184373041389 34.231884092919, 135.184578292128 34.2319072933676, 135.184577074568 34.2319457431169, 135.184572831803 34.2320870055872)) ^^http://www.opengis.net/ont/geosparql#wktLiteral