Anchor: You need anesthetic agents, IV tubing, blades for the bone saw, and so on.
Entailed: Various medical supplies are necessary.
Contradiction: We can use hypnosis to put the patient under.
Contradiction: He gave up quite easily. 
Contradiction: They can always join the military service
Contradiction: The high horn was broken on the ground.
Contradiction: Old person  using an improvised broken wheel barrel to transport his tools for work.