メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.014234822119 34.8226216633731, 137.013485146759 34.8226538006275, 137.013487987076 34.8221170788047, 137.014230224285 34.8220981719913, 137.015030482381 34.8220691940995, 137.015069621405 34.8225927293827, 137.014234822119 34.8226216633731)) ^^http://www.opengis.net/ont/geosparql#wktLiteral