Anchor: A man plays a drum, among a group of people are gathered in a nightclub.
Entailed: There are people in the nightclub.
Contradiction: The nightclub is empty.
Contradiction: Alternative cost is different from economic cost. 
Contradiction: Poirot went on to say, 'Didn't I repeatedly state at the start that I had no desire for Mr.Inglethorp to be arrested now?'
Contradiction: The cyclists are all on black bikes.
Contradiction: Similarly pleasing are the over 75 acres of garden.