add sentence
Merge branch 'master' of github.com:ProjetPP/PPP-NLP-classical
Change data structure (Words are now objects, and no tuples).
Add POS tags.
Fix POS tags in quotations.
Add nounification.
New exception.
Add Word constructor test.
Shorten functions with bad marks...
Revert "Shorten functions with bad marks..."

This reverts commit 80090d387b824be86a5d8f840039c8638351ec81.
Remove nesting list comprehensions.
Merge branch 'master' of github.com:ProjetPP/PPP-NLP-classical
Merge branch 'nounification' of github.com:ProjetPP/PPP-NLP-classical