メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.892432865866 35.3851031775114, 134.90549886439 35.3905264061756, 134.903202099485 35.3939900526398, 134.88969364274 35.3888796095456, 134.879543611288 35.3850680692528, 134.883472102968 35.3808086662581, 134.886861288541 35.3822083512098, 134.892432865866 35.3851031775114)) ^^http://www.opengis.net/ont/geosparql#wktLiteral