メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.21769277489 35.3035174304432, 135.217549555133 35.3035638834526, 135.217505405542 35.303616543431, 135.217411297063 35.3043228290636, 135.216737007968 35.3042982699827, 135.216311514019 35.3037862736802, 135.216311417167 35.3036159889809, 135.217227096714 35.3036948817413, 135.217533815229 35.3033863427578, 135.217633114896 35.3034070185568, 135.217656725697 35.3034106132741, 135.21769277489 35.3035174304432)) ^^http://www.opengis.net/ont/geosparql#wktLiteral