Given the task definition, example input & output, solve the new input case.
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.
Example: Twenty-year-old Will Hunting of South Boston is a self-taught, genius-level intellect, though he works as a janitor at the Massachusetts Institute of Technology and spends his free time drinking with his friends, Chuckie (Ben Affleck), Billy (Cole Hauser) and Morgan (Casey Affleck). When Professor Gerald Lambeau (Stellan Skarsgard) posts a difficult mathematics problem as a challenge for his graduate students, Will solves the problem anonymously, stunning both the graduate students and Lambeau himself. As a challenge to the unknown genius, Lambeau posts an even more difficult problem. Lambeau chances upon Will solving the problem but Will flees the scene. That night at a bar, Will meets Skylar (Minnie Driver), a British student about to graduate from Harvard, who plans on attending medical school at Stanford and gives Will her phone number before leaving.
Output: Question: How old is Will Hunting in the movie ?, Answer: Twenty years
This is a good question which results in a factoid answer, and the answer is correct too.

New input case for you: "Since the dawn of man, the vampires have walked among us, killingand feeding. The only one with the strength or skill to stop their heinousevil is the slayer, she who bears the birthmark, the mark of the coven.Trained by the watcher, one slayer dies and the next is chosen."In 1992 Los Angeles, the new vampire slayer is cheerleader Buffy [Kristy Swanson].Three bodies have been found with "really gross hickies" on their necks. Ittakes Merrick the Watcher [Donald Sutherland] some time, but he finally convinces Buffy that she is indeedthe chosen one. When Merrick is killed by the master Lothos [Rutger Hauer] and Buffylinks up with nerdy Pike [Luke Perry], she realizes how serious the vampire businessreally is. Things come to a head when vampires crash the senior prom.
Output:
Question: What is the mark of the coven?, Answer: Birthmark