dialogue: THEM: i would like 2 books and 1 ball <eos> YOU: i really need both books as well <eos> THEM: ok then 1 book and 2 balls <eos> YOU: deal <eos> THEM: should we split the hats ? <eos> YOU: <selection>
output: item0=1 item1=2 item2=0 item0=1 item1=0 item2=2