they are very heavy
they be very heavy
pro:sub cop adv adj
they are very heavy.
ð eɪ WORD_BOUNDARY ɑ ɹ WORD_BOUNDARY v ɛ ɹ i WORD_BOUNDARY h ɛ v i WORD_BOUNDARY
t h e y WORD_BOUNDARY a r e WORD_BOUNDARY v e r y WORD_BOUNDARY h e a v y . WORD_BOUNDARY