dialogue: THEM: gimme book and hat <eos> YOU: i'll need the hat . you can have the book and one ball . <eos> THEM: gimme 2 balls with book <eos> YOU: you can have the book and two balls . i'll keep one ball and the hat . <eos> THEM: <selection>
output: item0=0 item1=1 item2=1 item0=1 item1=0 item2=2