dialogue: YOU: i want the book and hat <eos> THEM: you can have the book , but i need the hat and the balls <eos> YOU: how about i keep a ball <eos> THEM: i can't do that , if you take the book i have to have the rest <eos> YOU: ok deal then , i take the book <eos> THEM: okay <eos> YOU: <selection>
output: item0=1 item1=0 item2=0 item0=0 item1=1 item2=3