メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.165135267861 34.2297243898383, 135.164616649935 34.2297246776299, 135.164597404655 34.2291803694542, 135.165238981799 34.2291792249867, 135.165265584455 34.2297258364349, 135.165135267861 34.2297243898383)) ^^http://www.opengis.net/ont/geosparql#wktLiteral