メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.779023808647 35.7875040962216, 140.779315346292 35.7878495533402, 140.779388115274 35.7879297927391, 140.778670076871 35.7885674783643, 140.778009939548 35.7891550587676, 140.777525575791 35.7887789614479, 140.776575613771 35.7880413310241, 140.777203334685 35.787504042575, 140.77741458225 35.7873025439957, 140.778262523084 35.7865854692804, 140.779023808647 35.7875040962216)) ^^http://www.opengis.net/ont/geosparql#wktLiteral