メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.275028057523 34.6801322839558, 135.274449927248 34.683526314877, 135.270401870319 34.6831000884152, 135.269164546215 34.6829721564132, 135.265518369743 34.6826148250595, 135.266127167725 34.6792476458882, 135.267044715117 34.6793284852652, 135.269126388077 34.6795828979288, 135.274952416734 34.6801982265566, 135.274959783554 34.6801260512753, 135.275028057523 34.6801322839558)) ^^http://www.opengis.net/ont/geosparql#wktLiteral