In this task, you are given a question. You have to answer the question based on your information.

[Q]: What subject did the composer of night music start through his collection and analytical study of folk music?
[A]: comparative musicology


[Q]: Dyson is a well-known maker of ring-shaped bladeless fans, but which Japanese company invented them, in 1981?
[A]: Toshiba


[Q]: What type of Energy do SunEdison Inc, a company that built an array of photovoltaic panels on a Davidson County farm in North Carolina, specialise in?
[A]:
renewable energy