Given the task definition and input, reply with output. In this task, you will be shown an extract from a movie plot. You need to read the extract and create questions that can be answered from the extract. Once you create a question you also need to provide the correct answer for it. Write your answer like "Question: your question, Answer: your answer". The questions should be well-formed and grammatically correct. The questions should be completely answerable from the given passage and should not require any external knowledge. Subjective questions are not allowed. Short answers containing words that are present in the passage are preferred. Create questions that result in factoid answers. A simple rule of thumb to decide whether a question is a factoid or not is to see if two different people with average reading/comprehension skills would come up with the same answer after reading the passage.

Fifteen years after television last visited Mayberry, R.F.D., former Sheriff Andy Taylor and his wife Helen return to their old hometown and happily reunite with many beloved family, friends and characters in rural North Carolina. With Andy's boy Opie, now married, on the verge of having his first child, the former lawman is ready to return to his roots. He decides to run again for Sheriff, then discovers his old deputy Barney Fife is campaigning for the job.But Barney already has his hands full with other professional and romantic challenges, including the appearance of mysterious lake monster and the culmination of his ongoing courtship of the long-suffering Thelma Lou. Andy works behind the scenes to help his friend and all Mayberry, including Gomer and Goober Pyle, Otis Crump and many other familiar faces.
Question: What is in the lake?, Answer: monster