que le pasó al trenecito
que le pasó al trenecito ?
k e WORD_BOUNDARY l e WORD_BOUNDARY p a s o WORD_BOUNDARY a l WORD_BOUNDARY t ɾ e n e θ i t o WORD_BOUNDARY
q u e WORD_BOUNDARY l e WORD_BOUNDARY p a s ó WORD_BOUNDARY a l WORD_BOUNDARY t r e n e c i t o WORD_BOUNDARY