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: pablo escobar and his brother's school once sent them home because they had no shoes and no money to buy them.

Output: pablo escobar


Input: Consider Input: painting is using colours to make art.

Output: painting


Input: Consider Input: sgt. pepper's lonely hearts club band is an album released by the beatles.


Output: sgt. pepper's lonely hearts club band