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: miangul aurangzeb (urdu/pashto: ميانگل اووررنگزيب) (28 may 1928 – 3 august 2014) is a pakistani politician.
Example Output: miangul aurangzeb

Example Input: the somatic nervous system (sns) is part of the peripheral nervous system.
Example Output: somatic nervous system

Example Input: the 1957 formula one season was the 8th of the championship.
Example Output:
1957 formula one season