Anchor: He noted that most brief intervention studies in EDs have focused on injured patients, but that 70 percent to 80 percent of ED patients do not present with an injury.
Entailed: Injured patients have been the focus of many intervention studies for EDs.
Contradiction: He failed to note that injured patients were the focus of many intervention studies for EDs.
Contradiction: There is no way to compare delivery costs. 
Contradiction: The boy is riding a bike.
Contradiction: Two players reach for a football.
Contradiction: A toddler is helping mix with a mixer