メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.740921354819 35.4337066079296, 136.741017447203 35.4339877755597, 136.740741301771 35.4340446505009, 136.740704493019 35.4340087134729, 136.738801862321 35.4344433039053, 136.738697919119 35.4342813952276, 136.738685341192 35.4342600849221, 136.738656090298 35.4342106526522, 136.739473142129 35.4336219577771, 136.739601517538 35.433539530064, 136.740308959362 35.4333478489666, 136.740756033515 35.4332392571278, 136.740921354819 35.4337066079296)) ^^http://www.opengis.net/ont/geosparql#wktLiteral