メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.694232971654 33.2402885110743, 131.694244982135 33.2408587939683, 131.693390544529 33.2409265692678, 131.692595298501 33.2410855727161, 131.691261853099 33.2413636379633, 131.691120140145 33.24081587807, 131.69096400633 33.2402781131982, 131.691638764743 33.2401438130326, 131.69226742829 33.2400113146928, 131.693169975043 33.2398264951889, 131.693342128637 33.2397845718272, 131.694154613821 33.2396287786928, 131.694234148099 33.2401986851348, 131.694232971654 33.2402885110743)) ^^http://www.opengis.net/ont/geosparql#wktLiteral