dialogue: THEM: i'll take the book . you can have the rest . <eos> YOU: i really want the book ball and 1 hat <eos> THEM: i'll let you have the book and ball . but i'll need all the hats . <eos> YOU: can't i have 1 hat with the book & ball ? <eos> THEM: ok . <eos> YOU: <selection>
output: item0=1 item1=1 item2=1 item0=0 item1=3 item2=0