Anchor: To examine the issue of gender, patients could be randomized to interventionists and both could be asked to evaluate their perceptions of the interaction.
Entailed: There is a possibility for patients to evaluate their perceptions of the interaction.
Contradiction: There is no way to examine the issue of gender.
Contradiction: A Scotsman is wearing a bathing suit.
Contradiction: There is a dog outside.
Contradiction: The man is smiling.
Contradiction: There were two parties in the campaign.