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.

Let me give you an 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.
The answer to this example can be: Question: How old is Will Hunting in the movie ?, Answer: Twenty years
Here is why: This is a good question which results in a factoid answer, and the answer is correct too.

OK. solve this:
In Kuwait, a military unit uncovers an American helicopter downed by friendly fire at least three years ago. As the wreckage is inspected, Master Sergeant Sam Harper, one of the burnt bodies within, springs to life and kills a sergeant and a major, and returns to an inert state after muttering, "Don't be afraid, it's only friendly fire!"Weeks later, Sam's body is delivered to his hometown of Twin Rivers, which is preparing for Independence Day. Sam's wife Louise is given custody of the casket containing Sam's remains, which are left in the home of Sam's estranged sister Sally, who lives with her patriotic young son, Jody. Sam reanimates in the early hours of the Fourth of July, and proceeds to kill and steal the costume of a perverted Uncle Sam. Sam then makes his way to a cemetery, where he murders two of three juvenile delinquents who had vandalized tombstones, and desecrated an American flag.During the Independence Day celebration (which a corrupt congressman is visiting) Sam beheads the third delinquent, kills Jody's teacher (who had opposed the Vietnam War) with a hatchet, and shoots Sally's unscrupulous lawyer boyfriend in the head. Despite these deaths, the festivities continue, but are thrown into disarray when Sam uses the fireworks gear to blow up the congressman, and a flagpole to impale Louise's deputy boyfriend. As this occurs, Jody is told by his mother and aunt that his supposedly heroic idol Sam was in fact an alcoholic psychopath who physically and sexually abused them, and only joined the military so he could get a "free pass" to kill people.Jody is told by Barry, another boy who has established an unexplained mental link with Sam, that the undead Sam is responsible for the deaths. With help from Sam's old mentor Jed, the boys goes to Jody's house, where they find the lecherous sergeant who had dropped Sam off dead, and stuffed inside Sam's coffin. Realizing that Sam will probably go after Louise, the boys and Jed go to her home, where Sam blames Jed (who had told him tales of how glorious combat was) for his current state. Jed retorts by yelling, "You never fought for your country! You just killed for the love of killing!"Jed's gun proves ineffective against Sam, so he and Louise go to get Jed's cannon while Jody (who Sam claims is the reason he came back) keeps Sam occupied. Jody lures Sam outside, and Jed blasts him with the cannon and destroys him in flames at Louise's house. The next day, Sally watches as Jody burns all of his war-themed toys.
Answer:
Question: What kills Sam?, Answer: a cannon