Generate a question with a factual answer.
Generated: In what century did the Tibetan Empire fall?

Generate a question with a factual answer.
Generated: How many active members were there in 1975?

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Generated: What was the name of Matare and Welker's transistor?

Generate a question with a factual answer.
Generated: What does the Roman Catholic Church say is not comparable to their sacraments and dogmas?