Anchor: I was struck by this a decade or so ago when I was in Prague, then still under Communist rule, where I had been invited to give a few lectures to some Party institutes about technology.
Entailed: I have been to Prague over five years ago.
Contradiction: I have never been to Prague in my whole life.
Contradiction: The man is yelling at the crowd.
Contradiction: Readers responded to our questions.
Contradiction: A red race car makes a pit stop for tires and fuel.
Contradiction: There is a pool in the back yard.