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.

[Q]: serie d is the top level of the non-professional football clubs in italy.
[A]: serie d


[Q]: glenn branca (october 6, 1948 – may 13, 2018) was an american avant-garde composer and guitarist.
[A]: glenn branca


[Q]: the embassy of russia in copenhagen is the embassy of russia to denmark.
[A]:
embassy of russia in copenhagen