メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.739858255354 40.3301368935362, 140.73885728971 40.3300242329242, 140.738884762834 40.3299823196664, 140.738868978771 40.3298337704946, 140.738782355788 40.3296624361778, 140.738654664939 40.3294456484254, 140.73857577512 40.3293220959377, 140.738547707166 40.3291152774325, 140.73863453556 40.3291293504447, 140.738789862549 40.3291993485909, 140.73897256585 40.3293113408776, 140.739004471772 40.3293743059606, 140.739443180335 40.3294725059132, 140.740119452596 40.3296792537571, 140.739858255354 40.3301368935362)) ^^http://www.opengis.net/ont/geosparql#wktLiteral