what's that thing they invented for the developing world where you put it on a dirty lake and the sun rays evaporate the water and it goes up and into a container and it's clean
length_constraints:number_paragraphs startend:quotation detectable_format:number_highlighted_sections change_case:english_lowercase keywords:forbidden_words length_constraints:number_words keywords:frequency
health
at least
less than
relationships
Please reply in details, and include exactly 3 paragraphs. Separate the paragraphs with *** Your answer need to be wrapped in double quotes Make sure to highlight at least 2 sections in your answer with markdown, i.e. use *highlighted section* All letters in your response must be lower case letters The words health cannot be in the response Keep your entire response at least 13 words or less. Mention the word "relationships" for less than 2 times