dialogue: THEM: i will take the books and the basketball you can have the 2 hats <eos> YOU: i would need the hats and ball of you take the books <eos> THEM: i need the books and at one other item you chose <eos> YOU: i'll take the ball and a hat <eos> THEM: deal <eos> YOU: <selection>
output: item0=0 item1=1 item2=1 item0=2 item1=1 item2=0