メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.871437145335 35.1184174057781, 136.871950877397 35.1184281834508, 136.871908650796 35.1201399564959, 136.87177496703 35.1201321601542, 136.871390141867 35.1201134574093, 136.870010264277 35.1200807963247, 136.869299670092 35.1200672598083, 136.869342072248 35.1183532562616, 136.869398844052 35.1183680446381, 136.869901671161 35.1183785926857, 136.869978825094 35.1183805460496, 136.870923827372 35.118404443047, 136.871437145335 35.1184174057781)) ^^http://www.opengis.net/ont/geosparql#wktLiteral