Task: Wrong Candidate Generation
Input (English): Context: It was 2 " out and backs " which gave spectators a chance to see the runners 4 times . That 's Heather Fuhr on the left and Paula Newby - Fraser handing out water at the turnaround . I was a bit shocked to see a number of Ironman competitors in the race and running hard ( I could see their registration wristbands . ) I was more shocked to see a guy running in corduroy shorts in fourth place trying to chase down the leaders . 
Question: What was the reason we could see the competitors numerous times ? 
Correct Answer: There were 2 out and backs .
Output (English): The guy in corduroy shorts led them around the out and backs .