メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((127.9000000 26.6833333, 127.9062500 26.6833333, 127.9062500 26.6875000, 127.9000000 26.6875000, 127.9000000 26.6833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral