メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.408239753685 40.5163106827283, 141.407053607134 40.5163445889416, 141.406944762928 40.5163433359951, 141.406987890735 40.5158556344098, 141.407014779991 40.5155283640063, 141.408746736716 40.5154355220651, 141.411453229108 40.5153140311803, 141.412880533232 40.5152596296325, 141.41287887303 40.5154145333494, 141.412935443959 40.5154477751193, 141.412886564433 40.5155096559073, 141.412852682886 40.5155578100633, 141.412744745593 40.5156346922935, 141.412608423598 40.515729166933, 141.412534440549 40.5157666159496, 141.41240610127 40.5157977614202, 141.412093411464 40.515822231926, 141.411596762835 40.5158857926093, 141.410714100864 40.5160076765772, 141.409819178594 40.5162053215896, 141.409656050608 40.5162223902692, 141.409073319346 40.5162677239431, 141.408239753685 40.5163106827283)) ^^http://www.opengis.net/ont/geosparql#wktLiteral