メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.358150801651 43.0609802614097, 141.358906763317 43.0610886936282, 141.358656909037 43.0620882432336, 141.358435642711 43.0629677511818, 141.357673986173 43.0628668658427, 141.357645451204 43.0628635482492, 141.357595327125 43.062854084731, 141.357363566641 43.0628227380907, 141.356670831835 43.0627183753275, 141.35682284694 43.062098198789, 141.356906510416 43.0618453841666, 141.356956204027 43.0615540439459, 141.357143404824 43.0608353287579, 141.358150801651 43.0609802614097)) ^^http://www.opengis.net/ont/geosparql#wktLiteral