Per https://www.wikidata.org/wiki/Wikidata:Wiktionary/Development/Proposals/2015-05
We talked about it with @WMDE-leszek and we think: Lemma should be a Term.
- Add provider interface
- Add to entity as an attribute and add getter and setter
- Add to content as part of isstub
- Add to Special:NewEntity
- Consider in equals() method
- Consider in __clone() method
- Consider in isEmpty() method
- Add to serializer
- Add to deserializer
- Add to patcher
- Add to differ
- Add support in EntityView
- Add to RDF mapping (not currently pluggable!)
- Add Validation (not currently pluggable)
- Add ChangeOp for updating (must work with wbeditentity)
- Add handling (or suppression) to EntityChangeFactory (not currently pluggable)