メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.595935579733 37.6638245537125, 140.595917518877 37.6637556837966, 140.595595032006 37.6638091606506, 140.595524539426 37.6635836534104, 140.595580192221 37.6635706226441, 140.595429253702 37.6631160142352, 140.595823860053 37.6630753053393, 140.59594811147 37.6634226662449, 140.59619174325 37.6633909586893, 140.596304194084 37.6637616260198, 140.595935579733 37.6638245537125)) ^^http://www.opengis.net/ont/geosparql#wktLiteral