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: the river clyde (, ]) is a river in scotland.

A: river clyde
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Q: lee soo-young (born lee ji-yeon april 12, 1979) is a korean ballad singer.

A: lee soo-young
****
Q: the fußball-club gelsenkirchen-schalke 04, commonly known as fc schalke 04, is a successful and popular german football club.

A:
fc schalke 04
****