メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.01376390218 34.883760069961, 137.011715303513 34.8831619390608, 137.009779496644 34.8826294862564, 137.009715385347 34.8825913018574, 137.009584077196 34.8825130259019, 137.009489514207 34.8824421216045, 137.010879829972 34.8802965526914, 137.011005911747 34.8803463674328, 137.014848979026 34.8820681426982, 137.01376390218 34.883760069961)) ^^http://www.opengis.net/ont/geosparql#wktLiteral