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.

Input: Consider Input: strawberry shortcake is a doll.

Output: strawberry shortcake

Input: Consider Input: kraft foods is a business that makes packaged food.

Output: kraft foods

Input: Consider Input: jean-claude duvalier (]), nicknamed "bebe 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.
Output: jean-claude duvalier