Anchor: A class full of college students sit in a classroom listening to a presentation.
Entailed: Students are listening to a presentation.
Contradiction: High school students are in class.
Contradiction: Compliance is optional and not required by any rule.
Contradiction: Islam was not initially forced on the Balearics by the caliphs.
Contradiction: Let's not say goodbye until we talk for at least an hour.
Contradiction: There are two people.