[Q]: Determine the topic of the question-answer pair. Question: "WHAT IS A LAW ENFORCEMENT MURDER BOOK?"; Answer: "In law enforcement parlance, the term murder book refers to the case file of a murder investigation."? Topic:
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[A]: Murder book

[Q]: Determine the topic of the question-answer pair. Question: "what is a fret on a guitar?"; Answer: "A fret is a raised element on the neck of a stringed instrument ."? Topic:
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[A]: Fret

[Q]: Determine the topic of the question-answer pair. Question: "what is in the alpine mountain systems?"; Answer: "At present the region is home to 14 million people and has 120 million annual visitors."? Topic:
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[A]: Alps

[Q]: Determine the topic of the question-answer pair. Question: "how many muscles in the body?"; Answer: "Examples range from 640 to 850."? Topic:
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[A]:
List of muscles of the human body