Anchor: The sensation of space is created by the absence of supporting walls beneath the dome; it rests instead upon four great arches, which in turn spring from four massive piers.
Entailed: There are no supporting walls under the dome, which creates a sensation of wide-open space.
Contradiction: There are four walls underneath the dome to hold it up.
Contradiction: Screening is used a as a clinical tool and not a research tool.
Contradiction: Following the distribution of the cheese and biscuits, Poirot leant towards Mrs.Cavendish. 
Contradiction: The pet curls up next to the fireplace in the living room.
Contradiction: I went from a second rate institution to a higher rate institution.