So two immigrants are crossing the border from Mexico when a border patrolman catches them and stops them. Being a long day he decides to have a little fun before he goes home. He tells the two immigrants ""if you can come up with a sentence in English with the words green, pink and yellow, you're free to cross"". The two are thinking and thinking when suddenly one of the immigrants yells ""I know! I know! The phone green I pink it up I say yellow!""