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:

Presidente de República Zeca🇨🇿, Mr. Miloš Zeman, agradece a #ChinaVirus, el único país que brinda asistencia en el momento más difícil del país, por el espíritu humanitario y los suministros médicos de carácter urgente. #Coronavirus #COVID19 #UnionStrong https://t.co/OHCjtun5K3