a donde van os trens
a donde van os trens ?
a WORD_BOUNDARY d o̞ n d e̞ WORD_BOUNDARY β a n WORD_BOUNDARY o̞ s WORD_BOUNDARY t ɾ e̞ n s WORD_BOUNDARY
a WORD_BOUNDARY d o n d e WORD_BOUNDARY v a n WORD_BOUNDARY o s WORD_BOUNDARY t r e n s WORD_BOUNDARY ? WORD_BOUNDARY