on est allé sur
on être aller sur
pro:sub v:aux part prep
on est allé sur .
ɔ̃ n WORD_BOUNDARY ɛ t WORD_BOUNDARY a l e WORD_BOUNDARY s y ʁ WORD_BOUNDARY
o n WORD_BOUNDARY e s t WORD_BOUNDARY a l l é WORD_BOUNDARY s u r WORD_BOUNDARY