what's the hardest
what the hard
pro:int det:art adj
what's the hardest ?
w ʌ t s WORD_BOUNDARY ð ə WORD_BOUNDARY h ɑː ɹ d ɪ s t WORD_BOUNDARY
w h a t ' s WORD_BOUNDARY t h e WORD_BOUNDARY h a r d e s t WORD_BOUNDARY