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:

Grateful for the opportunity to convey our deep appreciation for the strong cooperation between the U.S. and #Ethiopia to President @SahleWorkZewde today. I’m happy to acknowledge her strong leadership in advancing landmark political reforms and promoting women’s empowerment. https://t.co/EL1987Yjm0