he's good at sports
he good at sport
pro:sub adj prep n
he's good at sports ?
h iː z WORD_BOUNDARY ɡ ʊ d WORD_BOUNDARY æ t WORD_BOUNDARY s p oː ɹ t s WORD_BOUNDARY
h e ' s WORD_BOUNDARY g o o d WORD_BOUNDARY a t WORD_BOUNDARY s p o r t s WORD_BOUNDARY