メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.291793271678 38.3733180707762, 140.291054999405 38.3732910212599, 140.290881719837 38.3726740651308, 140.290616933998 38.3716857532797, 140.290294340341 38.3703279300066, 140.290537913049 38.3702216451314, 140.290728570957 38.3705092758233, 140.290950685539 38.3704090842454, 140.291289685132 38.3709165798406, 140.291254224182 38.371692350549, 140.291247015054 38.3718496997228, 140.291882465336 38.3718693767332, 140.291793271678 38.3733180707762)) ^^http://www.opengis.net/ont/geosparql#wktLiteral