Anchor: But to accept would give him a slight chance to prove he could do part of the work.
Entailed: He the opportunity to prove he could complete part of the task. 
Contradiction: Accepting meant he would never prove he was capable of doing the work. 
Contradiction: Three cellists perform.
Contradiction: a player about to catch the ball.
Contradiction: the woman is asleep at home
Contradiction: A person is being drawn on by others.