Task: Question Generation
Input (English): Context : Operating for a little more than a year, the airline was purchased by American Airlines for $1,400,000.00 through a complicated agreement primarily to obtain the Contract Air Mail (CAM) 33 mail services contract won by Halliburton and Southwest Air Fast Express. 
Subject : Southwest Air Fast Express 
Relation : parent company
Output (English): What company is Southwest Air Fast Express part of?