Anchor: He did so with surety, using the elbow of his bad arm to steady himself at the threshold, then raising both fists in a stretch.
Entailed: He used the elbow of his bad arm to keep himself steady. 
Contradiction: He has no hands. 
Contradiction: So I can start later?
Contradiction: Two people have wet bodies.
Contradiction: I was a plumber before becoming a parent.
Contradiction: Frank stuffs everything into the boxes of square and hip.