Subscribe to To provide the proper names from an "Official Announcement," I would need the specific text of the announcement. However, if you can provide the text, I can extract the proper names for you.
For example, if the text is:
"The President of the United States, Joe Biden, will be attending the G20 Summit in Rome, Italy, alongside the Prime Minister of Japan, Yoshihide Suga."
The proper names would be:
Joe Biden, Yoshihide Suga, United States, G20, Rome, Italy and Japan and receive notifications about the latest news.