c'était quel jour
être quel jour
v:aux det:gen n
c'était quel jour ?
s e t ɛ WORD_BOUNDARY k ɛ l WORD_BOUNDARY ʒ u ʁ WORD_BOUNDARY
c ' é t a i t WORD_BOUNDARY q u e l WORD_BOUNDARY j o u r WORD_BOUNDARY ? WORD_BOUNDARY