Task: Wrong Candidate Generation
Input (English): Context: Suppressing a mounting sense of frustration I answered the questions exactly as before , unable to understand the need for a fourth account of the incident . Throughout the whole ordeal I was undeniably grumpy , foul mouthed , and ill tempered . When I returned home that evening it dawned on me that being a patient - a good patient - must be terribly difficult . 
Question: Why did the writer have a mounting sense of frustration ? 
Correct Answer: Because they needed to write the same information on some forms repeatedly .
Output (English): Because they were foul mouthed .