メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.831933114436 35.2337427093298, 136.83166685204 35.2336467621308, 136.831424779498 35.2336170795819, 136.831143680019 35.2335759515261, 136.830912619064 35.2335503836273, 136.830605725456 35.2335253800324, 136.830875623541 35.2329013197372, 136.831025297187 35.232910324605, 136.831111292904 35.232792319169, 136.831429987255 35.2328222137072, 136.831787813899 35.2328382700246, 136.832065683091 35.232991363771, 136.832378785922 35.2331916671318, 136.831933114436 35.2337427093298)) ^^http://www.opengis.net/ont/geosparql#wktLiteral