Anchor: Tuppence, old bean! The two young people greeted each other affectionately, and momentarily blocked the Dover Street Tube exit in doing so.
Entailed: The two young people greeted each other in the Dover Street Tube exit.
Contradiction: The Dover Street Tube was so crowded that the two young people didn't get the chance to greet each other.
Contradiction: Old men playing soccer while the sun sets.
Contradiction: There is a bird outside.
Contradiction: The woman sits wearing a cast in a pink room.
Contradiction: The two women are laughing at the girl.