メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((132.935565937636 32.9989273189807, 132.935145994186 32.9989537380579, 132.934716035712 32.9990167770631, 132.934639314047 32.9976058357178, 132.935057335688 32.997578028621, 132.935468218817 32.9975620029275, 132.935565937636 32.9989273189807)) ^^http://www.opengis.net/ont/geosparql#wktLiteral