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