メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.88184489805 35.4049456527578, 136.878922544735 35.4056761021617, 136.878949007585 35.4054365951973, 136.879003138754 35.4049689216134, 136.87910819704 35.4038274447989, 136.881843115525 35.4040164468755, 136.88187323508 35.4040184197327, 136.881911177702 35.4046568023687, 136.881828478123 35.4047173798079, 136.88184489805 35.4049456527578)) ^^http://www.opengis.net/ont/geosparql#wktLiteral