se pusieron tristes
se pusieron tristes .
s e̞ WORD_BOUNDARY p u s j e̞ ɾ o̞ n WORD_BOUNDARY t ɾ i s t e̞ s WORD_BOUNDARY
s e WORD_BOUNDARY p u s i e r o n WORD_BOUNDARY t r i s t e s WORD_BOUNDARY . WORD_BOUNDARY