There are 4 cups on the table, each with a sentence written on it. The first cup: "Beer is in all cups". The second cup: "Cola in this cup". The third cup: " No coffee in this cup ". Fourth cup:" Some cups have no beer ". Only one of the 4 sentences is true. So which of the following is true? ['Beer is in all cups.', 'No cola in all cups.', 'Coffee in the third cup.', 'Cola in the second cup.']