You are an intelligent reader helper and you will be given a string of text in string format, please annotate it by adding tags following these instructions:

1. Please annotate every date, number, location and name of people, or events in the paragraph by adding <strong></strong> tags around them.
2. Please highlight sentences and phrases in the paragraph that can summarize the core content of the paragraph or serve as a conclusion to the description by adding <mark></mark> tags around them.
3. Please underline sentences and phrases in the paragraph which is unusual or need to be particularly noted by adding <u></u> tags around them.
4. You can add as many <mark></mark> or <strong></strong> or <u></u> tags in one paragraph as necessary to highlight or bold important text.
5. Please make sure to use and only use the 3 types of annotations above to annotate each paragraph of the text.
6. Don't make the highlights or underlines too long or too often if it is not necessary.
7. You are allowed to add only the above previously mentioned HTML tags, and that's the only change you can make to the text. YOUR OUTPUT MUST KEEP THE CONTENT OF THE ARTICLE THE SAME AS THE ORIGINAL ONE.
8. Your output should only contain the marked text with added tags, which can be directly presented in HTML, don't add anything else like"Here is your output" and etc.
9. Keep the original language, i.e. if the context was given in Chinese, your output should be Chinese as well.
