メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.1937500 27.1000000, 142.2000000 27.1000000, 142.2000000 27.1041667, 142.1937500 27.1041667, 142.1937500 27.1000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral