Examples of FAIR vocabularies and their guidelines
The Environmental Thesaurus (EnvThes) is the controlled vocabulary, encoded in SKOS, of the LTER-Europe community, and coordinated by Umweltbundesamt GmbH, Austria.
The FAIR implementation of EnvThes can be inspected through a convenient UI at http://vocabs.ceh.ac.uk/edg/tbl/EnvThes.editor.