メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.885311932504 35.2561948423524, 136.885483172911 35.2561749604002, 136.88556717017 35.256637681536, 136.886027961309 35.2594028444859, 136.884807111994 35.2595309962686, 136.884156477888 35.2596069498223, 136.883892861806 35.258019109189, 136.883607311866 35.2563847374678, 136.883660336262 35.256375565087, 136.883448908506 35.2552648058103, 136.884089784607 35.2551881349469, 136.885127008037 35.2550653484372, 136.885311932504 35.2561948423524)) ^^http://www.opengis.net/ont/geosparql#wktLiteral