Anchor: i saw them i went to a Beach Boys concert i like them too
Entailed: I have been to a Beach Boys concert before.
Contradiction: I have never had the chance to go to a Beach Boys concert.
Contradiction: An agency might fire people involved with an account if they end up doubling the size of the account. 
Contradiction: Many famous sailors have departed from this port on the Seine estuary.
Contradiction: Kedumin Square does not have any churches.
Contradiction: The British forced Nepal to give up territories in 1816.