メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.694944913085 35.0633220793438, 136.695256348188 35.0632369845971, 136.695678700052 35.0647940614608, 136.695796097447 35.0653290421542, 136.695760230901 35.0653316427765, 136.695485111465 35.0653419509363, 136.695452798087 35.0651779752282, 136.695121011468 35.0651822690155, 136.694686969788 35.0636597652479, 136.69461668468 35.0634117071474, 136.694944913085 35.0633220793438)) ^^http://www.opengis.net/ont/geosparql#wktLiteral