メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.737244253442 43.7311212303307, 143.737168673047 43.7321100738329, 143.737131675617 43.7325426292169, 143.734992079671 43.7322932753464, 143.73326847771 43.7321083801458, 143.733653379205 43.7287219841349, 143.735152664906 43.7287964152933, 143.735414332036 43.7288134770281, 143.735865112841 43.728831329561, 143.736866598306 43.7288803735457, 143.737598561364 43.7289162192215, 143.73758459248 43.7290412562983, 143.737244253442 43.7311212303307)) ^^http://www.opengis.net/ont/geosparql#wktLiteral