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.
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Question: a sonata is a piece of music for one instrument or one instrument with another instrument accompanying.

Answer: sonata

Question: mother teresa (born agnes gonxha bojaxhiu, 26 august 1910 5 september 1997), was a roman catholic nun who started the missionaries of charity and won the nobel peace prize in 1979 for her work with people.for over forty years, she took care of needs of those without money, those who were sick, those without parents, and those dying incalcutta (kolkata), guided in part by the ideals of saint francis of assisi.

Answer: mother teresa

Question: henry frederick, prince of wales (19 february 1594 6 november 1612) was the oldest son of king james i & vi and anne of denmark.

Answer:
henry frederick, prince of wales