instruction:
Given an trivia question precisely answer the question with a word/phrase/name. External resources such as Wikipedia could be used to obtain the facts.
question:
Which cult/religion was formed by science-fiction writer L. Ron Hubbard?
answer:
scientology


question:
Whose last opera was Falstaff?
answer:
giuseppe verdi


question:
Which artist born in what is now Belgium (c. 1380-1441) painted the Ghent Altarpiece?
answer:

jan van eyck