Task: Explanation
Input (English): Republic Airline Inc., operating as Republic Airline, is a regional airline subsidiary of Republic Airways Holdings that operates service as American Eagle, Delta Connection, and United Express using a fleet of Embraer 170 and Embraer 175 regional jets. It is headquartered in Indianapolis, Indiana. Its call sign "Brickyard" is derived from the nickname of the Indianapolis Motor Speedway. Question: Where was the Republic Airline owned by Republic Airways Holdings headquartered? Answer: Indianapolis, Indiana.
Output (English):  It is headquartered in Indianapolis, Indiana.