Anchor: For example, the authors of the aforementioned New England Journal study characterized their finding of a 20 percent mortality reduction as slight.
Entailed: Authors of a New England Journal study believe a 20% reduction to be slight. 
Contradiction: The authors characterized the 20% mortality reduction as very significant. 
Contradiction: A female with a bikini is playing volleyball with others.
Contradiction: A good sword is only kind of helpful.
Contradiction: A man is sperlunking in a deep cave.
Contradiction: a person chops wood