メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.51886617875 39.2247553459128, 140.518654873542 39.224584672996, 140.51833173101 39.2242235358564, 140.518589396973 39.2241286561915, 140.518779986775 39.2240247987272, 140.519116265849 39.2238517986596, 140.51950011944 39.2236724502405, 140.519634595426 39.2236120045562, 140.520082136113 39.2232368229847, 140.520303305049 39.2230309961427, 140.52056842158 39.2231915352262, 140.51886617875 39.2247553459128)) ^^http://www.opengis.net/ont/geosparql#wktLiteral