メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.071690507354 38.3919411440674, 141.070942154505 38.3917163120111, 141.070655575396 38.3916273662138, 141.071058259625 38.3909141054041, 141.071318319619 38.3909135743663, 141.071478354245 38.3909132472917, 141.071703790053 38.3908607037318, 141.071829220291 38.3908138534143, 141.071955369255 38.3907410997099, 141.071925997687 38.3909341561609, 141.071871843594 38.3912135551405, 141.071731181902 38.3917786126365, 141.071690507354 38.3919411440674)) ^^http://www.opengis.net/ont/geosparql#wktLiteral