Anchor: emit one ton of sulfur dioxide.
Entailed: Get rid of at least 1 ton of the sulfur dioxide. 
Contradiction: Keep all the sulfur dioxide. 
Contradiction: You mean that you put on a car?
Contradiction: Most of this well-made city gate was created in the 16th century.
Contradiction: The girl is sleeping.
Contradiction: Minimally we expectantly desire as such.