B:	When they, when they switch to, switch,
b iː WORD_BOUNDARY w ɛ n WORD_BOUNDARY ð eɪ WORD_BOUNDARY w ɛ n WORD_BOUNDARY ð eɪ WORD_BOUNDARY s w ɪ t̠ʃ WORD_BOUNDARY t ə WORD_BOUNDARY s w ɪ t̠ʃ WORD_BOUNDARY