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.
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Question: Leonora is the heroine of which opera premiered in 1805?

Answer: fidelio


Question: Now a brand of General motors what is oldest active American car make?

Answer: buick


Question: Lapsong souchong is a type of what?

Answer:
tea