balls are round aren't they
ball be round be they
n cop adj aux pro:sub
balls are round aren't they?
b ɔː l z WORD_BOUNDARY ɑː WORD_BOUNDARY ɹ aʊ n d WORD_BOUNDARY ɑː n tʰ WORD_BOUNDARY ð eɪ WORD_BOUNDARY
b a l l s WORD_BOUNDARY a r e WORD_BOUNDARY r o u n d WORD_BOUNDARY a r e n ' t WORD_BOUNDARY t h e y ? WORD_BOUNDARY