メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.918138819714 35.2029990602539, 136.918096216908 35.2033753935505, 136.918058242891 35.2037107491936, 136.918010592036 35.2041315819394, 136.917067649947 35.2040535668254, 136.916317002418 35.2039915086746, 136.91629909756 35.2035677234237, 136.916284773044 35.203229230108, 136.916218028182 35.202896896652, 136.91619155302 35.2027516951131, 136.91751621533 35.2026898010954, 136.917821592867 35.2026687440362, 136.918178050431 35.2026525100885, 136.918138819714 35.2029990602539)) ^^http://www.opengis.net/ont/geosparql#wktLiteral