dialogue: THEM: id like the ball and the books . . . hats would be yours <eos> YOU: how about i get 3 hats and 2 books <eos> THEM: 3 hats and 1 book and we have a deal <eos> YOU: fine <eos> THEM: <selection>
output: item0=1 item1=3 item2=0 item0=2 item1=0 item2=1