Anchor: A group of people are clearing garbage up from a beach.
Entailed: People are making the beach look cleaner.
Contradiction: People are littering wrappers all over the beach.
Contradiction: The boy is taking a nap in his bed.
Contradiction: Maybe, if compared with Charles Bronson's. 
Contradiction: I am making must more working in the public sector than the private sector.
Contradiction: If you want a room in a particular hotel, booking in July and August is best.