メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.343507391193 35.4016873949406, 139.343365844079 35.4042756547201, 139.340089796173 35.4041534517035, 139.340223171866 35.4016127890273, 139.343423518438 35.40168297295, 139.343507391193 35.4016873949406)) ^^http://www.opengis.net/ont/geosparql#wktLiteral