You love your pets and you have a lot of them in your house. One summer day you thought of taking your pets out to play and have fun at the park nearby. This is a very good idea because even the pets need a break. After playing for a while you are very tiered and so you sit under a tree to get some rest. Soon you fall asleep and later when you wake up you discover that the main exit gate is locked but it is time now for you and your pets to go back home. Surely there will be a spare key inside the house in the middle of the park. You must obtain it and use it to exit.