Anchor: So the last hope of solving the mystery, by means of Mrs. Inglethorp's correspondence on the fatal evening, had to be abandoned. 
Entailed: There was now no hope of solving the mystery.
Contradiction: There was still hope of solving the mystery.
Contradiction: Two people are running on the beach.
Contradiction: He understands how business works due to his intelligence.
Contradiction: In cases where the willingness to pay of the sender is related to content, it might be possible to argue that content wouldn't continue to be recognized in rates.
Contradiction: Two men playing checkers.