メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.357829386429 43.1107527939558, 141.357743068233 43.1111496683075, 141.357630928038 43.1116386774022, 141.357225632937 43.1115816666083, 141.356561953658 43.1114841824954, 141.356096377974 43.111420793116, 141.356219964295 43.1109374302219, 141.356233245359 43.1108890801095, 141.356317157291 43.1105322661697, 141.356324033999 43.1104885062029, 141.356401368898 43.1101547057752, 141.35640467579 43.1101385561962, 141.357927607351 43.1103486196842, 141.357829386429 43.1107527939558)) ^^http://www.opengis.net/ont/geosparql#wktLiteral