メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.99670527348 43.5600960006347, 144.996275434028 43.5604335992989, 144.996224070739 43.560388529682, 144.995799763795 43.5600866206423, 144.996199532987 43.5597426796211, 144.996257278843 43.5597834824326, 144.996290650617 43.5598071163019, 144.996636727538 43.5600516252147, 144.99670527348 43.5600960006347)) ^^http://www.opengis.net/ont/geosparql#wktLiteral