メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.351139251084 43.0382889249209, 141.351101558456 43.0385920335791, 141.351095584659 43.0386400217743, 141.351061233637 43.0389309189926, 141.351045275924 43.0390454310126, 141.35100554625 43.0393303777529, 141.350688250301 43.0393060823805, 141.350024067829 43.0392552856312, 141.34930324855 43.0392091029173, 141.349385112299 43.0385349293416, 141.349470562616 43.0378644414818, 141.350169432537 43.0379090443992, 141.351177281939 43.0379823737294, 141.351139251084 43.0382889249209)) ^^http://www.opengis.net/ont/geosparql#wktLiteral