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.

Example Input: language death is when a language stops being used as a first language (also called mother language or native language) and as a second language, which it then becomes an extinct language.
Example Output: language death

Example Input: allan holdsworth (6 august 1946 – 15 april 2017) was a british guitarist and composer.
Example Output: allan holdsworth

Example Input: jean-claude servan-schreiber (11 april 1918 – 11 april 2018) was a french journalist and politician.
Example Output:
jean-claude servan-schreiber