Anchor: A man in an all white outfit plays guitar on stage.
Entailed: A musician is performing on stage
Contradiction: A man is playing violin in his basement
Contradiction: A German officer, Robert Gayer-Anderson bought the latter between the World Wars.
Contradiction: Some birds are outside.
Contradiction: IF less than one, revenue decreases
Contradiction: They hunted the smallest boy in fourth form with horses and hounds.