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: sellapan ramanathan (tamil: செல்லப்பன் ராமநாதன்; (july 3, 1924 – august 22, 2016) was the sixth president of the republic of singapore.

Output: sellapan ramanathan


Input: Consider Input: sandy gandhi (born sandra aranha; 28 january 1958 – 1 february 2017) was an australian comedian and columnist.

Output: sandy gandhi


Input: Consider Input: a cloak is a type of loose garment.


Output: cloak