メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.596584826327 42.9061779957255, 141.596810803901 42.9065318532165, 141.597059299498 42.9068874555747, 141.597379922495 42.9067939173371, 141.597613525005 42.90714218937, 141.597844420306 42.9075069736989, 141.598095381441 42.9078609007809, 141.598306839174 42.9081777486593, 141.598523310136 42.9084911074817, 141.598717583103 42.9087866175875, 141.596883360959 42.9094537243033, 141.596557729464 42.9095717781493, 141.595936797434 42.9086549891116, 141.595200302698 42.9075664917035, 141.594486431809 42.9064896529734, 141.594844287456 42.9063632101867, 141.596338923961 42.9058131932586, 141.596584826327 42.9061779957255)) ^^http://www.opengis.net/ont/geosparql#wktLiteral