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: veronika marchenko is a russian activist.

Output: veronika marchenko


Input: Consider Input: georges loinger (29 august 1910 – 28 december 2018) was a french resistance fighter during world war ii.

Output: georges loinger


Input: Consider Input: britannia was the name of britain in latin.


Output: britannia