メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.02132035735 34.0518563969567, 131.021806589062 34.0526555475045, 131.022198440293 34.0532999927896, 131.022021105785 34.0533229942149, 131.021379751105 34.0536645396811, 131.021265444727 34.054167069797, 131.021204829826 34.0542822974061, 131.02109356204 34.0544076174358, 131.019790106345 34.0521400681094, 131.019701588129 34.0519582305735, 131.018883189791 34.0505605346018, 131.019341328196 34.0504709925419, 131.020334469481 34.0502767000668, 131.020455553578 34.0504657437277, 131.02132035735 34.0518563969567)) ^^http://www.opengis.net/ont/geosparql#wktLiteral