dialogue: THEM: i want the 4 books please <eos> YOU: i would like the ball , but i would also like one book please <eos> THEM: if you take one book can i have 3 books and 2 hats ? <eos> YOU: yes you can have 3 books and 2 hats <eos> THEM: <selection>
output: item0=1 item1=0 item2=1 item0=3 item1=2 item2=0