メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.970743142139 43.5430273016717, 144.96997552104 43.54361002753, 144.969546832265 43.5433296773493, 144.969117493119 43.543051942211, 144.969405167788 43.542828266852, 144.969733426262 43.5425526441936, 144.969862572279 43.5424537958601, 144.97019280174 43.5426730275607, 144.970507100523 43.5428733345663, 144.970721430328 43.5430131573792, 144.970743142139 43.5430273016717)) ^^http://www.opengis.net/ont/geosparql#wktLiteral