メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.50658275515 39.2441134928032, 140.506448188901 39.2443291745552, 140.506029045775 39.2450145846115, 140.50539942285 39.2445569765662, 140.506152960305 39.243978347647, 140.50658275515 39.2441134928032)) ^^http://www.opengis.net/ont/geosparql#wktLiteral