Anchor: Due to changes in market conditions and requirements for increased productivity through using common components, a large manufacturing company decided that it needed to make major changes in the way it managed IT to support the business.
Entailed: Productivity needs to be higher.
Contradiction: Productivity needs to be lower.
Contradiction: He knew exactly what they were referring to. 
Contradiction: America needs a public health defense system to fight environmental threats
Contradiction: Adults are walking in the rain.
Contradiction: The people are sitting in a dark room.