Anchor: A group of men on a boat that is tipped wearing helmets.
Entailed: A bunch of guys are on a boat.
Contradiction: Guys are jumping up and down.
Contradiction: Two people are looking around
Contradiction: Indoor air contains dust mites, remains of cockroaches, pet dander and cigarette smoke.
Contradiction: A man with a broken leg limps past the two male doctors.
Contradiction: Two people are sitting outside.