メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.830021520591 35.5206074361466, 137.829962012196 35.521192102638, 137.829857580626 35.5222175474711, 137.829741088046 35.5222064434963, 137.829148338813 35.5221500119294, 137.828655680443 35.5221039944132, 137.828722273388 35.5216525630697, 137.828794540962 35.5211919028386, 137.828809820996 35.5210946357071, 137.828839268307 35.5208552061133, 137.828841601413 35.52083623755, 137.828884032455 35.5205091346171, 137.82932015904 35.5205468445528, 137.830021520591 35.5206074361466)) ^^http://www.opengis.net/ont/geosparql#wktLiteral