who's your best friend
who your good friend
pro:int det:poss adj n
who's your best friend ?
h uː z WORD_BOUNDARY j ʊ ɹ WORD_BOUNDARY b ɛ s t WORD_BOUNDARY f ɹ ɛ n d WORD_BOUNDARY
w h o ' s WORD_BOUNDARY y o u r WORD_BOUNDARY b e s t WORD_BOUNDARY f r i e n d WORD_BOUNDARY