メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.368802450478 43.0860855062461, 141.368873403546 43.0858018559027, 141.369474760883 43.085887361532, 141.369521620309 43.085891730616, 141.370028676532 43.0859624422371, 141.370634833981 43.0860480489542, 141.370408471639 43.0870055881603, 141.370233784186 43.0877316514954, 141.36965385832 43.0876492678946, 141.369069543252 43.0875719121391, 141.368453677071 43.0874933949055, 141.368636636902 43.0867672579639, 141.368720180134 43.0864289193242, 141.368768731369 43.0862218946472, 141.368802450478 43.0860855062461)) ^^http://www.opengis.net/ont/geosparql#wktLiteral