メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.339043453596 43.0639812578569, 141.339103475977 43.063989261036, 141.339332083081 43.0640195660839, 141.339887364139 43.0640905897013, 141.339748370833 43.064680742743, 141.339603308309 43.0652595242514, 141.339009425029 43.0651841819105, 141.338931874822 43.0651743510669, 141.338624544212 43.0651354002379, 141.338033822067 43.065060500276, 141.33819292355 43.0644738858526, 141.338341165645 43.0638884511029, 141.338748208668 43.0639428250591, 141.339043453596 43.0639812578569)) ^^http://www.opengis.net/ont/geosparql#wktLiteral