メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.213507425525 33.9717308304731, 131.213686629359 33.9731505342411, 131.213673542074 33.9734296455178, 131.21236081015 33.9733957932865, 131.210789642982 33.9733534363309, 131.210727250092 33.9742901738459, 131.207920688078 33.9742350888655, 131.207964650903 33.9733162424865, 131.20801101378 33.9723490962964, 131.208001063596 33.9722337861287, 131.207945729287 33.9720042971498, 131.207825946219 33.9716793589488, 131.207720497937 33.9714105997354, 131.210060140441 33.9714728984729, 131.210873904325 33.9714896486722, 131.210876906555 33.9714252927155, 131.211714769248 33.971539849157, 131.212339447568 33.97161456998, 131.213507425525 33.9717308304731)) ^^http://www.opengis.net/ont/geosparql#wktLiteral