dialogue: YOU: id like book and 1 hat . <eos> THEM: what will you let go so i can get the book ? <eos> YOU: book is 7 for me . <eos> THEM: okay , i'll take only the balls . i have no need for the hats . <eos> YOU: <selection>
output: item0=1 item1=3 item2=0 item0=0 item1=0 item2=2