Anchor: uh uh we had a couple of people in our group who wrote one who wrote a huge letter to the editors
Entailed: We had a couple of people in our group, they wrote a huge letter to the editors.
Contradiction: Nobody in our group dared to write a letter to the editors.
Contradiction: There is no way to detect levels of alcohol concentration.
Contradiction: Mineral water is necessary
Contradiction: Three people are eating a hearty lunch at Denny's.
Contradiction: The man is drinking water.