Anchor: She observed that the gender of both interventionists and patients has not been well documented in studies.
Entailed: Gender was not well documented in studies.
Contradiction: Gender was accounted for in the studies.
Contradiction: A woman playing with birds.
Contradiction: Abrams prevented Congress from enforcing a policy that he did not agree with.
Contradiction: Local prices are always cheaper.
Contradiction: Two men wrestle.