we need some trees
we need some tree
pro:sub v qn n
we need some trees .
w iː WORD_BOUNDARY n iː d WORD_BOUNDARY s ʌ m WORD_BOUNDARY t ɹ iː z WORD_BOUNDARY
w e WORD_BOUNDARY n e e d WORD_BOUNDARY s o m e WORD_BOUNDARY t r e e s WORD_BOUNDARY