メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.328627592044 43.7619568661614, 142.328977505454 43.7620698421538, 142.329008079115 43.7620772046576, 142.329592387823 43.7622564529442, 142.329716380379 43.7622920551283, 142.330101962915 43.7624136167792, 142.329471086998 43.7634967257056, 142.329087871268 43.7633716968008, 142.32906246523 43.7633637672866, 142.328369365008 43.7631470051671, 142.327985485013 43.7630291279195, 142.327601606564 43.7629112664472, 142.327920080147 43.762342518601, 142.328226741375 43.7618365402993, 142.328627592044 43.7619568661614)) ^^http://www.opengis.net/ont/geosparql#wktLiteral