Anchor: Friends having fun out for the night.
Entailed: A group of friends are having a good time.
Contradiction: A group of friends are preparing to greet a group of aliens on Mars.
Contradiction: The world is safer than it was.
Contradiction: A person enjoying herself.
Contradiction: Case Transforming an Organization's Cafeteria's Menu. 
Contradiction: Chances are, a lesser known union will still not cut political deals even if it lacks imagination.