Anchor: A repetition of the signal knock sounded on the door below, and Tommy, his mind made up, slipped quickly into the recess, and cautiously drew the curtain farther across so that it shielded him completely from sight.
Entailed: Tommy decided to hide out of sight.
Contradiction: Hearing the signal knock, Tommy rushed downstairs to greet the visitor.
Contradiction: Chemical cousins are not being developed.
Contradiction: An old man is outside reading.
Contradiction: Jon said it didn't matter when they escaped.
Contradiction: Toward the End of Time had a modest rebound.