un nen o una nena
un nen o una nena ?
ʊ n WORD_BOUNDARY n ɛ n WORD_BOUNDARY ʊ WORD_BOUNDARY u n ɐ WORD_BOUNDARY n ɛ n ɐ WORD_BOUNDARY
u n WORD_BOUNDARY n e n WORD_BOUNDARY o WORD_BOUNDARY u n a WORD_BOUNDARY n e n a WORD_BOUNDARY