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 raven" is a narrative poem by american writer edgar allan poe, first published in january 1845.

Output: the raven


Input: Consider Input: nelsan ellis (november 30, 1977 – july 8, 2017) was an american actor and playwright.

Output: nelsan ellis


Input: Consider Input: the simpsons halloween episodes or "the simpsons halloween specials" is a seasonal special tv episode that is aired in every season where there are three different halloween-based stories.


Output: the simpsons halloween episodes