Conversation so far:
what is the poultry capital of the world
The poultry capital of the world is Gainesville, Georgia
Why is Gainesville, Georgia the poultry capital of the world
Gainesville, Georgia, is the poultry capital of the world because of its large number of poultry processing plants
Who is the mayor of Gainesville
The mayor of Gainesville, Georgia, is Danny Dunagan
What's the population of Gainesville
The estimated population of Gainesville, Georgia, as of 2018 is 41,464

Question: What's the area code
Self-contained rewrite: What's the area code of Gainesville