Question: Which airport is closer to its central business district, Mercedita Airport or MidAmerica St. Louis Airport?
Sentence (from "Mercedita Airport"): Mercedita Airport (IATA: PSE, ICAO: TJPS, FAA LID: PSE) is a public use airport located three nautical miles (6 km) east of the central business district of Ponce, Puerto Rico.
Relevant evidence: Yes