メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.677509184258 35.7294496226269, 140.677025051549 35.7295068819463, 140.676845346816 35.7295323112261, 140.676554762061 35.7288052569274, 140.677630735856 35.7284972560338, 140.677654269764 35.7285749187474, 140.677673506425 35.7286710427747, 140.677509184258 35.7294496226269)) ^^http://www.opengis.net/ont/geosparql#wktLiteral