Anchor: But in November 170 faculty members asked the academic senate to adopt a more conventional grading system.
Entailed: Faculty members wanted a more conventional grading system.
Contradiction: Faculty members wanted a less conventional grading system.
Contradiction: The Yokohama Museum of Art was designed by Picasso. 
Contradiction: I lived in Bermuda.
Contradiction: Four men are waiting for the subway.
Contradiction: Some men who commit domestic violence claim they didn't realize what they were doing.