メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.524980734158 44.056324809885, 143.524269079151 44.0565544794184, 143.523815588103 44.0567008638036, 143.523422071807 44.0560515018862, 143.523263795279 44.0557137742314, 143.523055626169 44.0556686179283, 143.522772109419 44.0551739739385, 143.523075459581 44.0550743320378, 143.524033100443 44.054776121604, 143.524624125317 44.0545920542916, 143.525298142659 44.0547722395457, 143.526029761833 44.0559908667182, 143.525772370525 44.056069299633, 143.524980734158 44.056324809885)) ^^http://www.opengis.net/ont/geosparql#wktLiteral