メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.322792236591 43.0832652325855, 141.322939467564 43.0834022327044, 141.323093043005 43.0835449095016, 141.323343049324 43.0837703015439, 141.323430046952 43.0838486500374, 141.323468923026 43.0838857469071, 141.322955102661 43.0841980612852, 141.322101794697 43.0846888553429, 141.32174069465 43.0843669812457, 141.321415745771 43.0840722655998, 141.320886002139 43.083608925453, 141.321751706041 43.083097351207, 141.322266606357 43.0827959524923, 141.322792236591 43.0832652325855)) ^^http://www.opengis.net/ont/geosparql#wktLiteral