Task: Wrong Candidate Generation
Input (English): Context: it was amazing , i did nt even know Beethoven wrote an opera , or that people could play piano that quickly . this one pianist got so into it his eyes rolled back , that part was kind of creepy . Today i cleaned out my room and next weekend i will be painting it light mint green ! i ' m excited , i need a fresh start . 
Question: Why did the writer find the pianist 's expression to be creepy ? 
Correct Answer: Because a person 's eyes rolling back into their head is a creepy look .
Output (English): Because he was playing the piano very quickly .