extualize the above content and make it more professional. Refrain from using informal language. Present your analysis in JSON format. Make sure to follow the schema provided. Note: The current content is placeholders. You should fill the content and not provide any placeholders. Also, the is_trash value is based on the content provided. If the content is valuable, the is_trash should be false, if the content is promotional, the is_trash value will be true. And the content is about community cleaning event.