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 gates of the forest is a book written by nobel peace prize-winning author elie wiesel.

A: the gates of the forest
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Q: sceaux-sur-huisne is a commune.

A: sceaux-sur-huisne
****
Q: s. b. s. abayakoon (born 1958) is the dean of the university of peradeniya, sri lanka.

A:
s. b. s. abayakoon
****