Anchor: Health-food promoters often cite traditional use by Native Americans or Chinese herbalists as evidence.
Entailed: Chinese and Native American herbalist practices are sometimes co-opted by health-food promoters to sell product.
Contradiction: Health-food promoters only ever use recent scientific data as evidence.
Contradiction: People are sitting in an airport terminal.
Contradiction: He talked with a surgeon who was supposedly better than all of the other doctors of his type. 
Contradiction: This is clearly an issue of right and wrong.
Contradiction: Every moment was to their advantage.