メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.773997241915 35.4115589756036, 136.77401238017 35.4118700677302, 136.772811462544 35.4119056153069, 136.771585087243 35.4119498397376, 136.771565226781 35.4116299644254, 136.771530249422 35.4113057771897, 136.772780398568 35.4112970863053, 136.773658884639 35.4112930305002, 136.773979388145 35.4112670254678, 136.773997241915 35.4115589756036)) ^^http://www.opengis.net/ont/geosparql#wktLiteral