Anchor:  When you reach an impressive plaza with a 16th-century church and whitewashed town hall, you may feel that you've come to the top of the town but you haven't.
Entailed: You haven't come to the top of the town when you reach an impressive plaza with a 16th-century church.
Contradiction: You may not feel that you have come to the top of the town when you reach the plaza.
Contradiction: A man is inside a sealed room.
Contradiction: Three people playing football.
Contradiction: A kayaker is watching TV
Contradiction: Tuppence announced that she can look after herself, and walked away.