メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.173905196629 35.3505394619912, 137.173611135975 35.3504623669317, 137.173150092288 35.3503598580078, 137.172504643958 35.3501926385539, 137.173103821764 35.3486602257499, 137.174200801197 35.3489310044482, 137.174209140926 35.3493204376636, 137.174174635772 35.3496725500832, 137.173905196629 35.3505394619912)) ^^http://www.opengis.net/ont/geosparql#wktLiteral