メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.036777038955 42.917528435563, 143.037518294576 42.917583341966, 143.037351021124 42.9186721053223, 143.037340518165 42.9187566461065, 143.037336015459 42.9187562556936, 143.036616090423 42.9187053502743, 143.0359494671 42.9186582261997, 143.036007066759 42.9182551800862, 143.036065196641 42.917848613907, 143.036117966372 42.9174796419643, 143.036777038955 42.917528435563)) ^^http://www.opengis.net/ont/geosparql#wktLiteral