un aereo un aereo
un aereo un aereo .
o n WORD_BOUNDARY ɐ ɛː r e o WORD_BOUNDARY o n WORD_BOUNDARY ɐ ɛː r e o WORD_BOUNDARY
u n WORD_BOUNDARY a e r e o WORD_BOUNDARY u n WORD_BOUNDARY a e r e o WORD_BOUNDARY . WORD_BOUNDARY