TASK DEFINITION: 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.
PROBLEM: pipo de clown (english: pipo the clown) is a clown who became very popular on dutch television.

SOLUTION: pipo de clown

PROBLEM: vehari district is a district in the punjab province of pakistan.

SOLUTION: vehari district

PROBLEM: the demographics of pakistan are a study of the population and the people.

SOLUTION:
demographics of pakistan