メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.551790027489 34.0727091297134, 134.551288456526 34.0732432220846, 134.550511137147 34.0736488102343, 134.549712462506 34.0726757080635, 134.551336959935 34.072142080628, 134.552610551244 34.0717269511296, 134.552323316355 34.0720369933211, 134.551768105611 34.0726817772044, 134.551790027489 34.0727091297134)) ^^http://www.opengis.net/ont/geosparql#wktLiteral