Generate a question with a factual answer.
Generated: The four truths explain the nature of what?

Generate a question with a factual answer.
Generated: What region produced several writing systems independent of other areas of the world?

Generate a question with a factual answer.
Generated: When can the frame size or frame rate parameter specification be dropped?

Generate a question with a factual answer.
Generated: Who was Ibn Sina's first appontment?