Consider the following sentence:
There are three options (Halifax, Winnipeg and Saskatoon). Of the three, Winnipeg is the best choice because of X, Y and Z.
The sentence is pretty straightforward. My question has to do with style: is it awkward to make reference to something (Winnipeg) that has previously only been referred to in parentheses?
Of course I could rewrite the sentence in any number of ways. My question has to do with whether there is a rule or convention that suggests that a word or phrase needs to be in the "real" (non-parenthetical) text if it is referred to later on in the text.
I have tried to research the question but tend to turn up references to parenthetical referencing.