Anchor: No convincing explanation has as yet been found.
Entailed: A convincing explanation hasn't been found. 
Contradiction: A convincing explanation was found. 
Contradiction: Two construction workers are shirtless.
Contradiction: Professor Anthony Smith believes that Laibson's theory predicts saving habits among people.
Contradiction: Less regional meetings for mutual problem solving is ideal.
Contradiction: I think it's a shame he was given that name.