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: francis george steiner, fba (born april 23, 1929) is a french-born american literary critic, essayist, philosopher, novelist, and educator.

Output: george steiner

Input: Consider Input: sir john soane (10 september 1753 20 january 1837) was an english architect.

Output: john soane

Input: Consider Input: an air raid is an attack in which bombs are dropped from aircraft on to a ground or sea target.
Output: air raid