it's in it isn't in either
it it be in either
pro:per pro:per cop adv adv
it's in it isn't in either.
ɪ t s WORD_BOUNDARY ɪ n WORD_BOUNDARY ɪ t WORD_BOUNDARY ɪ z ə n t WORD_BOUNDARY ɪ n WORD_BOUNDARY iː ð ə ɹ WORD_BOUNDARY
i t ' s WORD_BOUNDARY i n WORD_BOUNDARY i t WORD_BOUNDARY i s n ' t WORD_BOUNDARY i n WORD_BOUNDARY e i t h e r . WORD_BOUNDARY