メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.007715107783 34.7741865724537, 138.007078716266 34.774069623873, 138.006845366792 34.7740465659976, 138.006868222747 34.7738766390397, 138.006890940268 34.7737300948593, 138.007118504043 34.7737643980023, 138.007155270185 34.7736165022626, 138.00770666916 34.7737655046306, 138.007705544485 34.773955944381, 138.007715107783 34.7741865724537)) ^^http://www.opengis.net/ont/geosparql#wktLiteral