Consider this sequance of instructions running on an out-of-order CPU:
k ə n s ɪ d ə ɹ WORD_BOUNDARY ð ɪ s WORD_BOUNDARY s ɛ k w ə n s WORD_BOUNDARY ʌ v WORD_BOUNDARY ɪ n s t ɹ ʌ k ʃ ə n z WORD_BOUNDARY ɹ ʌ n ɪ ŋ WORD_BOUNDARY ɔ n WORD_BOUNDARY ʌ n WORD_BOUNDARY aʊ t ə v ɔ ɹ d ə ɹ WORD_BOUNDARY s iː p iː j uː WORD_BOUNDARY