what happened to the cat
what happen to the cat
pro:int v prep det:art n
what happened to the cat ?
w ʌ t WORD_BOUNDARY h æ p ə n d WORD_BOUNDARY t ə WORD_BOUNDARY ð ə WORD_BOUNDARY k æ t WORD_BOUNDARY
w h a t WORD_BOUNDARY h a p p e n e d WORD_BOUNDARY t o WORD_BOUNDARY t h e WORD_BOUNDARY c a t WORD_BOUNDARY