メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.341312030209 43.086792504445, 141.341766158077 43.0868525885956, 141.342250342811 43.0869243017896, 141.342048049293 43.0876466592286, 141.34191648227 43.0881332637609, 141.341865039746 43.088323526241, 141.341571659909 43.0882807557078, 141.340367763937 43.0881135742303, 141.340551049564 43.0874515507084, 141.340725815997 43.0867099896006, 141.341312030209 43.086792504445)) ^^http://www.opengis.net/ont/geosparql#wktLiteral