Once upon a time, Tom and Jack went on a journey. They came upon a jungle, at first both of them were very happy, but slowly they start to get tired and fall asleep in the jungle. On the next day, Tom was awoken by Jack. Jack said to Tom: "there is a good news and a bad news; which one do you want to hear first?" Tom replied: "start with the bad news." Jack said: "the bad news is we are lost, unable to get out, we have no food and have to eat cow shit for survival." Then Tom asked: "so what is the good news?" And Jack replied: "the good news is.......there are a lot of cow shit available."