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.

[EX Q]: barbara cook (october 25, 1927 august 8, 2017) was an american singer and actress.
[EX A]: barbara cook

[EX Q]: felix yusupov was never punished for this murder.
[EX A]: felix yusupov

[EX Q]: property law covers two types of property in the common law legal system, real property and personal property.
[EX A]:
property law