Anchor: He observed concern during the conference that control groups in intervention studies get much alcohol-related assessment, which can act as an intervention.
Entailed: He saw the people were concerned.
Contradiction: He saw people weren't concerned like they should be.
Contradiction: It only carries English books.
Contradiction: A woman is sitting.
Contradiction: There is no Hersheimmer.
Contradiction: There is a boy in front of a game.