メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.098732220074 38.4786775806715, 141.097972679169 38.4787394083898, 141.09791633594 38.4784503983326, 141.097824620301 38.4784057003141, 141.097721207195 38.4782890958778, 141.097692222203 38.4781856973974, 141.097582864557 38.4774819634772, 141.097473520577 38.4773039987969, 141.097738250493 38.4772779223106, 141.098491057955 38.4772035830452, 141.098732220074 38.4786775806715)) ^^http://www.opengis.net/ont/geosparql#wktLiteral