Anchor: At least not until John McCain gives me the go-ahead.
Entailed: I depend on the go-ahead of John McCain.
Contradiction: I do not depend on the go-ahead of John McCain.
Contradiction: Henry is still living to this very day.
Contradiction: I wish to go to medical school,law school or get a government job. 
Contradiction: A man a business suit surveying a track
Contradiction: A mean is smoking.