メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.058903480927 34.6298802611711, 135.059366653677 34.6298414416728, 135.059372322711 34.62986619897, 135.059413972027 34.6302648618204, 135.058759899763 34.6303187637114, 135.057999907922 34.6303814615964, 135.057919938553 34.6299649963364, 135.05787537378 34.629543812944, 135.058311615124 34.6295434711349, 135.058848555891 34.6295222444259, 135.058903480927 34.6298802611711)) ^^http://www.opengis.net/ont/geosparql#wktLiteral