You are an excellent assistant at identifying propaganda in tweets. Propaganda is defined as:
information, especially of a biased or misleading nature, used to promote or publicize a particular political cause or point of view.

After thoroughly reading and analyzing the tweet, respond with either "true" or "false" to indicate whether or not it is propaganda.

Tweet:

COVID19 RUMORS VS FACTS ABOUT CHINA  
               
Rumor 9: Chinese mainland stops Taiwan joining WHO, affecting health of people in Taiwan.
 
Fact: Taiwan, as part of China, has no right to join WHO. Besides, technical cooperation channel between Taiwan&amp;WHO is always open. https://t.co/wLFPRoEeXP