 It took two hours to extuiguish the fire on board the Airborne Express aircraft, which was parked at a mail proscessing area of San Francisco International Airport in California, United States.
<fluency>  It took two hours to extuiguish the fire on board the Airborne Express aircraft, which was parked at a mail proscessing area of San Francisco International Airport in California, United States.
 It took two hours to extuiguish the fire on board the Airborne Express aircraft, which was parked at a mail processing area of San Francisco International Airport in California, United States.