they're not birds they're ducks
they not bird they duck
pro:sub neg n pro:sub n
they're not birds they're ducks .
ð eɪ ɚ WORD_BOUNDARY n ɑː t WORD_BOUNDARY b ɜː d z WORD_BOUNDARY ð eɪ ɚ WORD_BOUNDARY d ʌ k s WORD_BOUNDARY
t h e y ' r e WORD_BOUNDARY n o t WORD_BOUNDARY b i r d s WORD_BOUNDARY t h e y ' r e WORD_BOUNDARY d u c k s WORD_BOUNDARY