Task: Wrong Candidate Generation
Input (English): Context: Luke 's fish died . Just before I was going to put the boys down for the evening , Wendy came upstairs and mentioned to me in a somber whisper , " Luke 's fish died . Should we tell him now , or should we wait till the morning ? " I could n't stand the idea of my son sleeping peacefully while his fish was belly up in the tank , so I said she better go tell him right away . 
Question: How might the fish have met it 's untimely end ? 
Correct Answer: Natural causes , most likely .
Output (English): A severe lack of water .