メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.265395114832 44.0241038102192, 144.265276439184 44.0244607719652, 144.264857275016 44.0244455228699, 144.264790101083 44.0243957534968, 144.264742516042 44.0243777090004, 144.264621372543 44.0243571997316, 144.264153860444 44.0243012858273, 144.263009171373 44.0243290331274, 144.263085909998 44.0236023829685, 144.263378770897 44.0231975283657, 144.265549370895 44.0238708068073, 144.265395114832 44.0241038102192)) ^^http://www.opengis.net/ont/geosparql#wktLiteral