dialogue: YOU: the book the hat and a ball . <eos> THEM: i want the book and two balls <eos> YOU: you can have 3 balls and i'll take the book . <eos> THEM: and i get the hat <eos> YOU: deal i get the book you get the rest . <eos> THEM: <selection>
output: item0=1 item1=0 item2=0 item0=0 item1=1 item2=3