{"tema_id":"54","string":"Observational unit","created":"2024-04-17 19:34:27","code":"","modified":"0000-00-00 00:00:00","notes":[{"@type":"Scope note","@lang":"en-EN","@value":"SYMSITES k-SDSS "},{"@type":"Definition note","@lang":"en-EN","@value":"The unit upon which observations or measurements are made. "}]}