メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.006432717962 34.9940003700688, 137.00576586901 34.9936782010555, 137.005814107004 34.9935943176199, 137.005905716039 34.993470208678, 137.006325230544 34.9929023581576, 137.006838592198 34.9930396641479, 137.008006452657 34.9933236094609, 137.008327449179 34.9933992446453, 137.008655012216 34.9934878468939, 137.009189911549 34.9936167899096, 137.00914717516 34.9937410365732, 137.009052566529 34.9940858598382, 137.00717017689 34.9936103404637, 137.006432717962 34.9940003700688)) ^^http://www.opengis.net/ont/geosparql#wktLiteral