メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.353492370949 43.0891531549188, 141.353386941058 43.0895719778122, 141.353311226036 43.0898942617855, 141.352757924413 43.0898222683389, 141.352569220274 43.0897994084834, 141.352309247248 43.0897679710269, 141.351763087971 43.0896933559981, 141.351835242501 43.0893787810715, 141.351947495101 43.0889534024879, 141.3521120488 43.0882519017831, 141.352881914735 43.088363012775, 141.353657547665 43.088453909091, 141.353492370949 43.0891531549188)) ^^http://www.opengis.net/ont/geosparql#wktLiteral