メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((133.7125000 33.6375000, 133.7187500 33.6375000, 133.7187500 33.6416667, 133.7125000 33.6416667, 133.7125000 33.6375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral