メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.289258505555 43.1041474897606, 141.289192164763 43.1041732362201, 141.288062911725 43.1031517251561, 141.288657374453 43.1027791235423, 141.289573170324 43.1022094111617, 141.290342071384 43.1017403663422, 141.290338698363 43.1021900895887, 141.290332119292 43.1029066835746, 141.290318121383 43.1036558476729, 141.290038592682 43.1036582161034, 141.289258505555 43.1041474897606)) ^^http://www.opengis.net/ont/geosparql#wktLiteral