Solution for #29

Greg is a German spy during World War II. Tim, an American, is suspicious of him, so he plays a word-association game with him. When Tim says, "The land of the free," Greg says, "The home of the brave." When Tim says, "The terror of flight," Greg says, "The gloom of the grave." Any U.S. citizen would know the first verse of the national anthem, but only a spy would have memorized the third.