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.

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

serie d is the top level of the non-professional football clubs in italy.
serie d

prince al-waleed bin talal (also spelled waleed bin talal) (; born 7 march 1955) is a member of the saudi royal family.

al-waleed bin talal