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.

Example Input: saint-marcel-en-marcillat is a commune.
Example Output: saint-marcel-en-marcillat

Example Input: hadstock is a village and civil parish in uttlesford, essex, england.
Example Output: hadstock

Example Input: alemayehu atomsa (; 12 february 1969 – 6 march 2014) was an ethiopian politician.
Example Output:
alemayehu atomsa