un treno e poi
uno treno e poi
art n conj adv
un treno e poi .
o n WORD_BOUNDARY t r ɛ n o WORD_BOUNDARY e WORD_BOUNDARY p ɔ i WORD_BOUNDARY
u n WORD_BOUNDARY t r e n o WORD_BOUNDARY e WORD_BOUNDARY p o i WORD_BOUNDARY . WORD_BOUNDARY