dialogue: YOU: i would like the balls and the hat . <eos> THEM: i would like the books and one ball <eos> YOU: how about the books and the hat ? <eos> THEM: i don't need the hat . you can have it <eos> YOU: ok , i agree to your previous offer then . <eos> THEM: <selection>
output: item0=0 item1=1 item2=1 item0=2 item1=0 item2=1