she's n twenty years old
she twenty year old
pro:sub det:num n adj
she's n twenty years old .
ʃ iː z WORD_BOUNDARY ɛ n WORD_BOUNDARY t w ɛ n t i WORD_BOUNDARY j ɪ ɹ z WORD_BOUNDARY oʊ l d WORD_BOUNDARY
s h e ' s WORD_BOUNDARY n WORD_BOUNDARY t w e n t y WORD_BOUNDARY y e a r s WORD_BOUNDARY o l d WORD_BOUNDARY