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: barbara cook (october 25, 1927 – august 8, 2017) was an american singer and actress.

Output: barbara cook


Input: Consider Input: the nemean lion ( ""; latin: "leo nemaeus") was a vicious monster in greek mythology that lived at nemea.

Output: nemean lion


Input: Consider Input: saint-simon, aisne is a commune.


Output: saint-simon, aisne