メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.164631282422 34.2273219984375, 135.16402740259 34.2273625565482, 135.163998534179 34.2266605692648, 135.164000290762 34.2264822450175, 135.164621069076 34.226542098479, 135.164631282422 34.2273219984375)) ^^http://www.opengis.net/ont/geosparql#wktLiteral