メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.634370824866 35.3584779896306, 136.633136986249 35.3584176879573, 136.633176527732 35.35794708719, 136.634403984023 35.3580030648966, 136.634401104283 35.3580488970048, 136.634396212687 35.3581263407986, 136.634376736145 35.3583959026686, 136.634370824866 35.3584779896306)) ^^http://www.opengis.net/ont/geosparql#wktLiteral