Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

[Q]: the river clyde (, ]) is a river in scotland.
[A]: river clyde


[Q]: ernest gary gygax (july 27, 1938 – march 4, 2008) (ipa: ˈgaj.gæks) was an american writer and game designer.
[A]: gary gygax


[Q]: jean-claude duvalier (]), nicknamed "bébé doc" or "baby doc" (july 3, 1951 – october 4, 2014) was the president of haiti from 1971 until his overthrow by a popular uprising in 1986.
[A]:
jean-claude duvalier