A tagset is a list of part-of-speech tags (POS tags for short), i.e. labels used to indicate the part of speech and sometimes also other grammatical categories (case, tense etc.) of each token in a text corpus.
Oromo part-of-speech tagset is available in Oromo corpora. The POS tagging is based on manual annotation of 159 sentences from different public Afaan Oromo newspapers and bulletins to make the sample corpus balanced.