メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.585002915978 34.6810000459185, 135.585020961051 34.6815466461661, 135.585038973163 34.6820911340189, 135.583561449662 34.6820955354401, 135.58203569327 34.6820697513955, 135.582124082595 34.6817931220272, 135.582116966815 34.6815881462649, 135.582115214199 34.6815634894431, 135.582082839323 34.6811241749359, 135.582081649551 34.6810978306154, 135.58201104773 34.6804349806903, 135.583491105779 34.6804039835284, 135.584091806064 34.6803918057483, 135.584982197882 34.6803738505403, 135.585002915978 34.6810000459185)) ^^http://www.opengis.net/ont/geosparql#wktLiteral