Determine the topic of the question. Question: "what is the location of coldwater ms?" Topic:
Ans: Coldwater, Mississippi

Determine the topic of the question. Question: "when did classification of races begin?" Topic:
Ans: Race (human classification)

Determine the topic of the question. Question: "who killed julius caesar?" Topic:
Ans: Julius caesar

Determine the topic of the question. Question: "what is a mule in coins?" Topic:
Ans: Mule (coin)