Anchor: A group of students work on a project, while world flags hang above their heads.
Entailed: A group of students are working together on a school project.
Contradiction: A group of women are sitting below American flags.
Contradiction: The men are swimming!
Contradiction: Observations can be generalized up to a certain limit.
Contradiction: they are girls there too
Contradiction: There is a vagrant holding a sign while waiting for a ride and maybe some money