Anchor: purposes we do not need great accuracy, we only need reasonable estimates in order to examine the sensitivity of total unit cost to volume per capita.
Entailed: They said that estimates would be fine.
Contradiction: They wanted to know precisely what it was at that moment.
Contradiction: The man was not holding anything.
Contradiction: A person is walking down the street.
Contradiction: I need to know more. 
Contradiction: Someone in formal wear giving a toast.