メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.267106775887 44.0157774533107, 144.267020084556 44.016053967049, 144.266962577243 44.0164324568812, 144.266868693716 44.0168416196291, 144.265330878254 44.016748317752, 144.265470375842 44.0157357729862, 144.265481213368 44.0156530644204, 144.266242974569 44.0157221188956, 144.267042214643 44.0157699759616, 144.267106775887 44.0157774533107)) ^^http://www.opengis.net/ont/geosparql#wktLiteral