メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.801209758177 35.2323022644349, 136.799884884028 35.2323986882692, 136.799856479904 35.2320281711511, 136.799838131811 35.231872548918, 136.801244832222 35.231425660526, 136.801411624515 35.2313734160965, 136.801658828208 35.231295144143, 136.801952226935 35.2311939827661, 136.802363702989 35.2309747927074, 136.802359634369 35.2318782519756, 136.802344920872 35.2322291312688, 136.801869189049 35.2322589683802, 136.801617246691 35.232273844293, 136.801209758177 35.2323022644349)) ^^http://www.opengis.net/ont/geosparql#wktLiteral