Complex sentence: UPS Airlines Flight 6 was a cargo flight operated by UPS Airlines, which, on 3 September 2010, a Boeing 747-400 flying the route crashed at a military base shortly after take-off from Dubai International Airport, killing both of the two crew.
Split into simpler sentences: UPS Airlines Flight 6 was a cargo flight operated by UPS Airlines. On 3 September 2010, a Boeing 747-400 flying the route crashed at a military base shortly after take-off from Dubai International Airport, killing both of the two crew.