Anchor: However, an additional smoke stack is normally unnecessary.
Entailed: But an extra smoke stack is usually unnecessary.
Contradiction: It is necessary and urgent to provide an additional smoke stack, isn't it?
Contradiction: A few children playing reading in class.
Contradiction: Workers are inspecting a tennis court.
Contradiction: A woman is looking out into the water through a telescope
Contradiction: It is a daily struggle here at work.