antes faltaban piezas
antes falta pieza
adv v n
antes faltaban piezas .
a n t e̞ s WORD_BOUNDARY f a l t a β a n WORD_BOUNDARY p j e̞ s a s WORD_BOUNDARY
a n t e s WORD_BOUNDARY f a l t a b a n WORD_BOUNDARY p i e z a s WORD_BOUNDARY . WORD_BOUNDARY