Simplify the following text for a Grade 15 native English-speaking person.
Original: It is the principal city of and is included in the Valley , Alabama Micropolitan Statistical Area , which is included in the Atlanta-Sandy Springs-Gainesville , Georgia-Alabama ( part ) Combined Statistical Area .
Simplified: It is the principal city of and is included in the Valley , Alabama Micropolitan Statistical Area , which is included in the Atlanta-Sandy Springs-Gainesville , GA-AL CSA Combined Statistical Area .