I don't know it's a
I do know it a
pro:sub mod v pro:per det:art
i don't know it's a.
aɪ WORD_BOUNDARY d oʊ n t WORD_BOUNDARY n oʊ WORD_BOUNDARY ɪ t s WORD_BOUNDARY eɪ WORD_BOUNDARY
i WORD_BOUNDARY d o n ' t WORD_BOUNDARY k n o w WORD_BOUNDARY i t ' s WORD_BOUNDARY a . WORD_BOUNDARY