m r is mister
m r be mister
n:let n:let cop n
m r is mister .
ɛ m WORD_BOUNDARY ɑː ɹ WORD_BOUNDARY ɪ z WORD_BOUNDARY m ɪ s t ɚ WORD_BOUNDARY
m WORD_BOUNDARY r WORD_BOUNDARY i s WORD_BOUNDARY m i s t e r WORD_BOUNDARY