Task: Wrong Candidate Generation
Input (English): Context: What a crazy weekend ! Last night some powerful thunderstorms moved through right before church and knocked the power out in half the building . ( I do n't know how it went out in half the building . 
Question: what is the reason having power off in half the building makes you not know how it went out ? 
Correct Answer: It is unusual for power to be out in only part of any building as the power usually feeds from the same Power drop line .
Output (English): It is a mystery whenever power goes off .