Problem: Determine the topic of the question-answer pair. Question: "what is a mule in coins?"; Answer: "In numismatics , a mule is a coin or medal minted with obverse and reverse designs not normally seen on the same piece."? Topic:

A: Mule (coin)

Problem: Determine the topic of the question-answer pair. Question: "What is the disk defragmenter tool?"; Answer: "In the maintenance of file systems , defragmentation is a process that reduces the amount of fragmentation ."? Topic:

A: Defragmentation

Problem: Determine the topic of the question-answer pair. Question: "what did chaucer do?"; Answer: "While he achieved fame during his lifetime as an author, philosopher, alchemist and astronomer , composing a scientific treatise on the astrolabe for his ten year-old son Lewis, Chaucer also maintained an active career in the civil service as a bureaucrat, courtier and diplomat."? Topic:

A: Geoffrey Chaucer

Problem: Determine the topic of the question-answer pair. Question: "what happened to stevie ray vaughan?"; Answer: "On August 27, 1990, Vaughan was killed in a helicopter crash following a performance in East Troy, Wisconsin ."? Topic:

A:
Stevie Ray Vaughan