メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.749880457535 35.425799702717, 136.74979221198 35.4263555838799, 136.749507376701 35.426376511075, 136.749289576669 35.4263949556325, 136.748740479755 35.4264263142133, 136.748343935399 35.4260716892262, 136.747840836556 35.4256099381461, 136.748727295317 35.4253795703389, 136.748918933387 35.4253543122374, 136.749188450866 35.4253081235584, 136.749381506956 35.4252828696152, 136.74994754724 35.4252588907266, 136.749880457535 35.425799702717)) ^^http://www.opengis.net/ont/geosparql#wktLiteral