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: caledonian stadium is a scottish football stadium.
Example Output: caledonian stadium

Example Input: vicki ann axelrad (also called vicki lawrence; born march 26 1949) is an american comedienne, actress and a singer.
Example Output: vicki lawrence

Example Input: mandaue city is a city in the province of cebu in the philippines.
Example Output:
mandaue