Anchor: A child climbing a rock climbing wall with safety straps.
Entailed: The child is wearing a climbing harness.
Contradiction: The child is sitting on the ground taking off his harness.
Contradiction: a woman in a wheelchair
Contradiction: There's a good book by Larry Abraham called Call It Treason and Call It Conspiracy 
Contradiction: The old men are about to play chess
Contradiction: The training takes place every week.