メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.775502486717 35.4434845605334, 136.775197756501 35.4435336832532, 136.775172321712 35.4433481476381, 136.775131761081 35.4433009060482, 136.77508501003 35.4432084346546, 136.775221152946 35.4431619021515, 136.775584677983 35.4430906102483, 136.776527737051 35.4429877625893, 136.776593733846 35.443354339529, 136.775735313028 35.4434284100221, 136.775502486717 35.4434845605334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral