メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.5437500 32.6333333, 130.5500000 32.6333333, 130.5500000 32.6375000, 130.5437500 32.6375000, 130.5437500 32.6333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral