Anchor: If the response-to-advertising mail were also added to advertising mail it would have resulted in double counting.
Entailed: If the response-to-advertising mail were also added to advertising mail the items would be counted twice.
Contradiction: If the response-to-advertising mail were also added to advertising mail the items would result in an increase in revenue. 
Contradiction: The people are sleeping.
Contradiction: A man is outside sweeping.
Contradiction: A girl sits under a tree.
Contradiction: a group of children are looking at some fun artwork