Anchor: He was not sure if referral could be included every time, but acknowledged that it is a vital part of the work.
Entailed: He knew referral was an important part of the work.
Contradiction: He was not sure if referral was integral to the work.
Contradiction: Daniel is wearing a bathing suit. 
Contradiction: A cop looks at food.
Contradiction: I did very well on the diet.
Contradiction: The man and the other people are standing beneath the trees.