Anchor: Yes it is the only way. Then aloud he said abruptly: "You are an American?"
Entailed: He asked the question, "You are an American?" very suddenly. 
Contradiction: He didn't ask any questions and kept silent. 
Contradiction: Ignoring the elements of the definition also may help make this distinction clear.
Contradiction: people are running
Contradiction: I did exactly what I was supposed to do. 
Contradiction: A man is wearing white