Anchor: If necessary they could seal your lips with a threat of what might happen to her." Tommy nodded.
Entailed: They're prepared to make threats in exchange for your silence.
Contradiction: They're not going to force your silence with threats to her.
Contradiction: Three men are playing tennis on the field.
Contradiction: Miss Tuppence was talking to Sir James
Contradiction: The boy is standing near the sofa.
Contradiction: Men are playing a game.