The passage below comes from Word Smart.
In grammar, the antecedent of a pronoun is the person, place, or thing to which it refers. In the previous sentence, the antecedent of it is antecedent.
When I read the first sentence I thought it refers to a pronoun. (Am I right?) Then the next sentence says 'the antecedent of it is antecedent'. Which means the writer thinks it refers to antecedent. In that case my assumption about the reference of it is wrong. When a book says something which doesn't accord to my thought, I know I am more wrong than right. But I want to double check.