メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.279068250811 38.3501893500311, 140.279035743332 38.3508805421017, 140.278997886337 38.3508812082832, 140.278987251934 38.3511044274252, 140.278953623336 38.3511545256245, 140.278909367373 38.3515444044184, 140.277962396722 38.3515165775833, 140.277963793846 38.3514972982604, 140.277956330069 38.350950916778, 140.277931438626 38.3505041207239, 140.277894421253 38.3501241366137, 140.279068250811 38.3501893500311)) ^^http://www.opengis.net/ont/geosparql#wktLiteral