Anchor: Sometimes it is a matter of months, sometimes it has been known to be as long as twenty years! 
Entailed: It can take a short time or a very long time.
Contradiction: It always takes the exact same amount of time.
Contradiction: Her tone of voice fluctuated rapidly during the talk.
Contradiction: A woman is helping a girl color a rainbow.
Contradiction: Two guys at the gym are on the treadmills.
Contradiction: The Office of Management and Budget must review information collections in the interim final rule.