dialogue: YOU: i'll take the ball and the hat <eos> THEM: you can have all the hats and i want the ball and book <eos> YOU: i need the ball at least <eos> THEM: you take the ball and i take the rest <eos> YOU: okay <eos> THEM: <selection>
output: item0=0 item1=0 item2=1 item0=1 item1=3 item2=0