B:	yesterday I started exercising seriously.
b iː WORD_BOUNDARY j ɛ s t ə ɹ d eɪ WORD_BOUNDARY aɪ WORD_BOUNDARY s t ɑ ɹ t ɪ d WORD_BOUNDARY ɛ k s ə ɹ s aɪ z ɪ ŋ WORD_BOUNDARY s ɪ ɹ i ə s l i WORD_BOUNDARY