メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.539739244307 39.5722311506982, 140.539801387079 39.5726270729036, 140.539705209626 39.5729182029392, 140.539126239401 39.5734148996033, 140.538606083038 39.573741479922, 140.537781283465 39.5740463516314, 140.537113134263 39.5741729438782, 140.536204712586 39.5741308756242, 140.535116883297 39.5739031249565, 140.535570551641 39.5736436647952, 140.535781617646 39.5730795121337, 140.535692236396 39.5722905322875, 140.535613172021 39.5718063194476, 140.535602994084 39.5714746355911, 140.535627289561 39.571214747261, 140.535767949647 39.5708476298229, 140.536119954092 39.5706436418243, 140.536411099021 39.5706488163601, 140.537061793478 39.5708457844509, 140.538166300397 39.5716243157636, 140.538331704319 39.5717408817385, 140.539739244307 39.5722311506982)) ^^http://www.opengis.net/ont/geosparql#wktLiteral