Anchor: The answer is that they are interrelated and interdependent.
Entailed: They are related and dependent on each other.
Contradiction: They don't depend on each other at all.
Contradiction: The fishermen were driven away forever back in the 1980s.
Contradiction: a man is outside
Contradiction: The man is old.
Contradiction: Tuppence grinned cheerfully at his mention of Blackmail.