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

Example Input: a member of parliament (mp) is a person in the united kingdom or in canada who represents the people of an area (called a "constituency") in the house of commons.
Example Output: member of parliament

Example Input: hurricane ike was the third most damaging storm in united states (u.s.) history, having caused about $24 billion dollars in damage, it was only behind hurricane andrew in 1992 and hurricane katrina in 2005 as the most damaging in the u.s..
Example Output:
hurricane ike