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.

[EX Q]: lycksele is a town in northern sweden.
[EX A]: lycksele

[EX Q]: eric s. raymond (often called esr; born 4 december 1957) is an american writer and computer programmer.
[EX A]: eric s. raymond

[EX Q]: vincenzo bellini (catania, november 3 1801 - puteaux, near paris, september 23 1835) was an italian composer and opera composer.
[EX A]:
vincenzo bellini