メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.547731685522 34.06954271504, 134.547195458458 34.0702187311288, 134.54696863544 34.0700956481292, 134.547265664403 34.0693839198647, 134.547731685522 34.06954271504)) ^^http://www.opengis.net/ont/geosparql#wktLiteral