what happened to those
what happen to those
pro:int v prep pro:dem
what happened to those ?
w ʌ t WORD_BOUNDARY h æ p ə n d WORD_BOUNDARY t ə WORD_BOUNDARY ð oʊ z WORD_BOUNDARY
w h a t WORD_BOUNDARY h a p p e n e d WORD_BOUNDARY t o WORD_BOUNDARY t h o s e WORD_BOUNDARY