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: lagos state, sometimes referred to as lagos, is a state located in the southwestern part of nigeria.

Output: lagos state


Input: Consider Input: mpika district is a district of zambia in the northern province.

Output: mpika district


Input: Consider Input: masudur rahman baidya (1968 – 26 april 2015) was an indian swimmer.


Output: masudur rahman baidya