Anchor: That way they will know that was the gift you wanted to give them.
Entailed: They can learn that you wanted to give them that gift.
Contradiction: They will never be able to know that that was the gift you wanted to give them.
Contradiction: I left the papers there for all eternity. 
Contradiction: I inquired as to where I was and then said that there was something that I was supposed to remember.
Contradiction: A man is swinging the tennis racket.
Contradiction: Some of the civilian research programs were transferred to the Department of Energy.