his feet her feet
his foot her foot
det:poss n det:poss n
his feet her feet.
h ɪ z WORD_BOUNDARY f iː t WORD_BOUNDARY h ɜː WORD_BOUNDARY f iː t WORD_BOUNDARY
h i s WORD_BOUNDARY f e e t WORD_BOUNDARY h e r WORD_BOUNDARY f e e t . WORD_BOUNDARY