Anchor: He noted that little is known about effective screening for certain sub-populations, so screening research still has its place.
Entailed: Screening research is desirable since little is known about certain sub-populations and how they respond.
Contradiction: Screening research does not have a place.
Contradiction: some people stand outside a building
Contradiction: A man is wearing a jacket.
Contradiction: A hot air balloon crashes into the ground.
Contradiction: Donatello made a sculpture of the Crucifixion which is at the high altar..