Anchor: This is in considerable contrast to other evaluation methods, where control and comparison groups are used subtractively to rule out other reasons for a finding and establish firm attribution.
Entailed: By identifying control and comparison groups, we can rule out other explanations and settle on firm attribution.
Contradiction: Control and comparison groups generally don't have a purpose and are just used to tick boxes.
Contradiction: the woman is asleep at home
Contradiction: He's gotten stronger and has overcome alcoholism.
Contradiction: A man wants to take a bus.
Contradiction: There are no other towns in the region.