メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.323406027387 37.3929239691592, 140.322955697979 37.3932833111329, 140.323223540251 37.3935231064123, 140.323393066622 37.3936640466939, 140.322923602396 37.3940260016644, 140.32243256682 37.3943886098313, 140.322262968831 37.3942369670765, 140.321383969214 37.3935040870105, 140.322322374221 37.3927938435843, 140.322523021576 37.3929381765008, 140.323004383995 37.3925820870394, 140.323295827622 37.3923613811934, 140.323485695297 37.3922119154537, 140.323896205328 37.3925536186795, 140.323406027387 37.3929239691592)) ^^http://www.opengis.net/ont/geosparql#wktLiteral