メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.870233017094 38.2790257117904, 140.870427092003 38.2790464914288, 140.870850561161 38.2790950788936, 140.871706292093 38.2791711282296, 140.872603768209 38.2792867163382, 140.872546396704 38.2795216940133, 140.872512078969 38.2796904988464, 140.872492933959 38.2797846892682, 140.872447889667 38.2800062860839, 140.872483208171 38.2802396864442, 140.872513488893 38.2804549289822, 140.872511152983 38.28058374182, 140.87235426273 38.2806534754505, 140.87027273149 38.2815452153331, 140.869301900219 38.2819714805943, 140.86773717416 38.2826186334338, 140.867483394929 38.2822625302391, 140.867397045173 38.2821337403881, 140.867343630304 38.2820453455463, 140.867389686795 38.2818998985397, 140.867643562518 38.2810981133148, 140.867672673107 38.2810180032195, 140.867849994708 38.2804530144228, 140.867985494369 38.2800213523831, 140.867998625874 38.27999502406, 140.868135227055 38.279545341744, 140.868170493668 38.2794376372184, 140.868377087416 38.2788492692289, 140.870233017094 38.2790257117904)) ^^http://www.opengis.net/ont/geosparql#wktLiteral