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: the viverridae is a family of small to medium-sized mammals, the viverrids.

Output: viverridae


Input: Consider Input: nick halling is a british sportscaster.

Output: nick halling


Input: Consider Input: eugenio bersellini (10 june 1936 – 17 september 2017) was an italian football player and manager.


Output: eugenio bersellini