dialogue: YOU: how about you get three books <eos> THEM: i want 2 books and a ball <eos> YOU: how about three books <eos> THEM: 3 books and a hat <eos> YOU: no hat <eos> THEM: no deal then , i get either 3 books and a hat or just the ball <eos> YOU: you get the ball and three books <eos> THEM: ok <eos> YOU: <selection>
output: item0=0 item1=1 item2=0 item0=3 item1=0 item2=1