and try to predict the outcome of the world cup finals. joining us, oliver wolensiak at the sealife aquarium in oberhausen, germany. first of all what gave you the idea of trying this method? >> at the beginning, it was fun. you have to keep octopus busy, even at the aquarium, to give him tasks, so to get food, and at the european cup, the idea arose we want to see if he can predict the german game right and yes, it worked. jon: so you put the german flag on one acrylic box with a little treat inside, you guff him an identical box with the flag of your competitor team, and whichever box he chooses is predicted to be the winner, right? >> thart, yes. he has to open the box and to eat the mussel in it. >> he has to eat the mussel in it. so far, in this round of