Anchor: A person is riding a bike in a tunnel.
Entailed: person on bike
Contradiction: cow with bird on it
Contradiction: The combination of statistical sampling with fast pay procedures is not allowed under any circumstances.
Contradiction: One of the more popular regional walks goes through the gorge.
Contradiction: The girl was in a crowd surrounded by many others. 
Contradiction: The Federal Bank has a Secrecy Act Examination Manual.