メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.33891664355 43.0348515010038, 141.338879880904 43.0350941293305, 141.338787027415 43.035771232545, 141.337070309129 43.0356350346937, 141.337157026401 43.034972159677, 141.337190256546 43.0347418818371, 141.337191324303 43.0347345057864, 141.337242535622 43.034313073849, 141.338970865524 43.0344071634966, 141.338969015498 43.0344414699506, 141.33891664355 43.0348515010038)) ^^http://www.opengis.net/ont/geosparql#wktLiteral