メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.359250290066 43.0986961438015, 141.359210744593 43.098894790655, 141.359161776121 43.099068258041, 141.359093234118 43.0994065609473, 141.35908995929 43.099413989908, 141.359078537795 43.0994537063597, 141.357479982759 43.0992317609516, 141.357573531252 43.0988506838861, 141.35766436674 43.0984910344876, 141.357757017158 43.0980791469525, 141.358331077356 43.0981476143533, 141.359365178182 43.098285553748, 141.359250290066 43.0986961438015)) ^^http://www.opengis.net/ont/geosparql#wktLiteral