メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.522045321359 39.2213698684882, 140.522013097039 39.2213370561425, 140.52138919474 39.2206615936137, 140.522110681745 39.2202270301541, 140.522316508902 39.220218006172, 140.522317072409 39.2203056287835, 140.522324713912 39.2208282768579, 140.522447381861 39.2211348181558, 140.522287390793 39.2212583287439, 140.522045321359 39.2213698684882)) ^^http://www.opengis.net/ont/geosparql#wktLiteral