Anchor: The conversation that she had overheard, although interesting in that it proved beyond doubt the complicity of both Rita and Boris, threw very little light on the present preoccupations.
Entailed: Rita and Boris were working together, it was made clear by something that was overheard, but it didn't make the situation any clearer.
Contradiction: Rita and Boris had never spoken to each other and had no involvement with each other. 
Contradiction: The young people are swimming in a pool.
Contradiction: Some forms of puppet theater date back to the 11th century in Japan.
Contradiction: Yeah boy those giraffes came right up to us when we called them over.
Contradiction: A few people stroll down a street by major program center.