Anchor: Towards what end they were working, we did not know. 
Entailed: We could not tell what their ultimate motives were.
Contradiction: Their motives were crystal clear and easy to discover.
Contradiction: I didn't have any ideas.
Contradiction: Four People are present.
Contradiction: A girl is doing homework at school.
Contradiction: Among other things, the Clinger-Cohen act did 4 other things.