As a nonfiction writing expert, create a passage about [insert topic] suitable for [insert grade level] students. The passage should be structured to allow students to analyze for [insert specific skill or focus, e.g., cause and effect relationships]. Include guiding questions to help students identify and explain these relationships, such as "What caused [event] in the passage?" and "What was the effect of [event]?" Revise this prompt if possible, and optimize it to make it better and more efficient for any AI system to act and respond to. If possible run your optimized version.