Anchor: DEAR SIR, Referring to your advertisement in this morning's paper, I may be able to be of some use to you.
Entailed: I read your advertisement in this morning's paper and feel that I may be useful to you.
Contradiction: I do not think that I will be of any use to you.
Contradiction: the family is at home
Contradiction: Several water sports may be enjoyed.
Contradiction: Florence never existed.
Contradiction: The picture is taken outdoors.