Answer the following question: Is the following sentence factually correct?
"One can find that the Mongols are an ancient nomadic people that were once vastly a part of an empire."
Options:
- yes
- no
My answer and thoughts: The answer is yes.
Chain of thoughts: You can look this up online or through history books.

Answer the following question: Is the following statement true?
"President George W. Bush won the 2000 United States presidential election."
My answer and thoughts: The answer is yes.
Chain of thoughts: The United States Supreme Court upheld President George W. Bush as the winner of the 2000 United States Presidential election.

Answer the following question: Is the following statement true?
"In Iron Man Robert Downey Jr. plays the main character."
My answer and thoughts:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The answer is yes.
Chain of thoughts: Robert Downey Jr. plays the role of Iron Man in the movie.