dialogue: THEM: i'd like the hat and two balls . <eos> YOU: you can have that hat , but i really need the 2 balls myself . <eos> THEM: i'll take the hat and the books then . <eos> YOU: deal . <eos> THEM: <selection>
output: item0=0 item1=0 item2=2 item0=2 item1=1 item2=0