Anchor: ANC power will most probably be challenged in the 1999 election by the left.
Entailed: The left will challenge ANC power.
Contradiction: ANC power will not be challenged by the left. 
Contradiction: a person ice skating
Contradiction: The child is about to toss a basketball.
Contradiction: A cheerleader shakes her pom-poms
Contradiction: An interview occurring in the winter.