メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.879036931622 43.008308739139, 142.878943041999 43.0082503177884, 142.87824248045 43.0078283840111, 142.878120021833 43.0077545753786, 142.878224084022 43.0076595525011, 142.879094760152 43.0068912802773, 142.879320095367 43.0070266941265, 142.879968959625 43.0074958158208, 142.879154094115 43.0082065408161, 142.879036931622 43.008308739139)) ^^http://www.opengis.net/ont/geosparql#wktLiteral