メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.697246618345 35.3385759412984, 136.695936362218 35.3387053392287, 136.695727798354 35.3372550039377, 136.695844984109 35.3370378539743, 136.696956302153 35.3376200799778, 136.697026556506 35.3377925388958, 136.697078934751 35.3379427444476, 136.697166562815 35.3382246390884, 136.697218566663 35.3384399150614, 136.697246618345 35.3385759412984)) ^^http://www.opengis.net/ont/geosparql#wktLiteral