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

Output: eugenio bersellini

Input: Consider Input: hop and go is a 1943 looney tunes short movie directed by u.s. corporal norman mccabe and released to movie theaters by rko radio pictures.

Output: hop and go

Input: Consider Input: the 1957 formula one season was the 8th of the championship.
Output: 1957 formula one season