メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((129.0000000 27.7958334, 129.0062500 27.7958334, 129.0062500 27.8000000, 129.0000000 27.8000000, 129.0000000 27.7958334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral