Complex sentence: It was headquartered in Entebbe, Wakiso District, Uganda, and operated from its hub in Entebbe International Airport under the IATA airline code QU and the ICAO airline code code UGA; its callsign was UGANDA.
Split into simpler sentences: It was headquartered in Entebbe, Wakiso District, Uganda. It operated under the IATA airline code QU and the ICAO airline code code UGA; its callsign was UGANDA.