Anchor: Then a bray Croaker sounding off.
Entailed: A bray Croaker sounded off then.
Contradiction: A bray Croaker did not make any noise then.
Contradiction: Air pollution has gotten worse in America.
Contradiction: White was hitting himself.
Contradiction: Three painters are taking a break.
Contradiction: A massive eruption in 1500 b.c. changed the entire climate of the earth.