Stemming dictionaries can only include one-word entries. Stemming is not applied correctly if altLabel (i.e. synonyms) or prefLabel (i.e. main term) are composed of multiple terms.
Entries including special characters, such as hyphenated forms of a word or dates, like anti-biotics or 25/jan/2014, are considered multi-term entries. As a consequence, such entries are invalid in a stemming dictionary.
- 25 janvier 2014 = 25/jan/2014
- anti-biotics = antibiotics
- Français = Françaises