Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question. 
 input : Question: Opportunistic diseases are usually the direct cause of death of people with what disease? Answer: aids
length_constraints:nth_paragraph_first_word detectable_content:number_placeholders detectable_format:multiple_sections keywords:forbidden_words change_case:capital_word_frequency keywords:existence keywords:letter_frequency
falling
Section
falling
less than
heart
less than
e
Write exactly 2 paragraphs each separated with two new lines answering this instruction. The first paragraph must start with "falling" make sure it contains at least 1 placeholders represented by square brackets, such as [name] Make sure to include at least 3 sections marking the beginning of each section with 'Section X' Do not include the keywords: falling Respond with less than 4 words be in all capital letters The response must include the keywords heart The letter e should show up less than 5 times