dialogue: YOU: hi , can i have the hats ? <eos> THEM: you can have all of the books , i need the rest <eos> YOU: no , i want 2 hats . <eos> THEM: ok , i will take the books and the ball <eos> YOU: <selection>
output: item0=0 item1=2 item2=0 item0=4 item1=0 item2=1