Task: Wrong Candidate Generation
Input (English): Context: It would have been amusing if he had turned up to the gate late , since Iberia would then have to balance the cost of not being helpful with the ire of delayed passengers , but my son was good and organised . I am proud of him ! I am at work today , with marking to be done , though I have to say that so far I have been checking the Olympics , news , emails and so on . I will go shopping later on and I hope that the bright start to the day is followed by a warm afternoon . 
Question: What may have caused your son to make it to the gate without problems ? 
Correct Answer: He was prepared for the situation .
Output (English): He knew that the gate would open late .