Anchor: The decline in prices to their fundamental level may be gradual, and even a crash may not turn into a larger economic disaster.
Entailed: There may be a gradual decline in prices to their fundamental level.
Contradiction: There must be a quick decline in prices to their fundamental level.
Contradiction: I don't ever want you to make me a map, map maker. 
Contradiction: After the Allies disembarked at Normandy, salvation was delivered.
Contradiction: I will never behave like a gentleman when there are women around.
Contradiction: A man was climbing a ladder up the cliff.