Anchor: Two guys talking on the street in the city.
Entailed: Two people are talking in the city.
Contradiction: A woman and her daughter are reading a book.
Contradiction: I hope they are stuck in eternal turmoil. 
Contradiction: GAO considers the substance of the comments and then changes the report.
Contradiction: A man is taking a photo of a station wagon.
Contradiction: Reasonable assurance is provided by strong systems of internal control.