メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.992322096574 35.3121743190066, 135.991842256894 35.3122566906979, 135.991230650773 35.3123310243522, 135.991068961925 35.3115454923014, 135.990724868425 35.3117102660071, 135.990602000141 35.3111457287885, 135.990871436189 35.3110448969662, 135.990866625181 35.3108050979293, 135.991811408971 35.3106129631552, 135.992322096574 35.3121743190066)) ^^http://www.opengis.net/ont/geosparql#wktLiteral