メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((133.0000000 35.4708334, 133.0062500 35.4708334, 133.0062500 35.4750000, 133.0000000 35.4750000, 133.0000000 35.4708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral