Save The Country Bull

We all see the country bull roaming in this place but it cannot be seen anywhere around. Let us go to the nearby forest and see if the bull is there. I can hear a sound. I think it is the bull struggling to break free. Oh, look at the bull. It is tied to a chain and it is locked up. Who could have done such a mean thing? This bull is not at all aggressive or harmful. Please come with me to help me rescue the big animal. Finding the key from the forest will be a very challenging task but we have to do it.