メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.3480911501 43.0699722749561, 141.347923475728 43.0705470903895, 141.347844268238 43.070881083741, 141.347789008787 43.0711140808353, 141.346256196285 43.0709011846507, 141.346400674748 43.0703392700047, 141.346539043148 43.069762045253, 141.347107617837 43.0698390601231, 141.347409050977 43.0698798889228, 141.3480911501 43.0699722749561)) ^^http://www.opengis.net/ont/geosparql#wktLiteral