メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.373671747855 42.9920743492457, 144.373796597482 42.9922501695998, 144.374256831912 42.9929008012015, 144.37325644576 42.9932000698949, 144.373241507145 42.9931947211809, 144.373284089939 42.9932350016398, 144.372825977971 42.9934132836249, 144.371186882327 42.9942223881418, 144.370909310434 42.9939459454764, 144.370551978707 42.9936289261655, 144.370279955625 42.9933855033446, 144.371936615727 42.9922409746084, 144.371947094007 42.9922336765966, 144.373158052109 42.9913508642422, 144.373489912497 42.9918183581306, 144.373671747855 42.9920743492457)) ^^http://www.opengis.net/ont/geosparql#wktLiteral