Anchor: A man in a blue headband and white shirt plays tennis.
Entailed: A person is playing tennis.
Contradiction: A man in a yellow headband and white shirt plays tennis.
Contradiction: There are no sailboats for hire anywhere around the island. 
Contradiction: He put a book upright on the table. 
Contradiction: Hanson knew exactly what he wanted as he looked across the hall at Nema.
Contradiction: A woman is looking at her surroundings.