メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.547000074662 43.2435863518775, 143.546137958253 43.2436066237019, 143.545977527607 43.2423567971828, 143.545943833659 43.2419294381366, 143.547446574609 43.241884799259, 143.547538154946 43.2429988264001, 143.546717793846 43.2430278408453, 143.546737879169 43.2434618948963, 143.546986042085 43.2434511283891, 143.547000074662 43.2435863518775)) ^^http://www.opengis.net/ont/geosparql#wktLiteral