Anchor: Major trauma, injuries, assaults,72 depression, and alcohol-related medical problems like gastrointestinal bleeding or seizures define even higher risk subgroups.
Entailed: Alcohol related medical problems are one of many in higher risk subgroups.
Contradiction: Higher risk subgroups do not include major trauma, injuries or assaults.
Contradiction: A red car is exploding.
Contradiction: A dog is outside.
Contradiction: The man had nothing he could hide. 
Contradiction: The man is outdoors enjoying a walk.