メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.221818672263 36.6336336624252, 137.222248877579 36.6336434579834, 137.222679075038 36.6336432535954, 137.222678869762 36.6337307718222, 137.222678446497 36.6339098908348, 137.222740624647 36.6345345951072, 137.221790417594 36.6344028868433, 137.221387227659 36.6343549872082, 137.220624373907 36.6342644415342, 137.220213406262 36.6342154132015, 137.219371679152 36.6341160255804, 137.219491354108 36.633382386904, 137.220357048091 36.633384882513, 137.220770626164 36.6333861007722, 137.22112050397 36.6333896722549, 137.221812311367 36.6333966716694, 137.221818672263 36.6336336624252)) ^^http://www.opengis.net/ont/geosparql#wktLiteral