Is the following statement true?
"Back to the Future 1 takes place in the years 1985 and 1955."
Your chain-of-thought:

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
In the movie Marty is taken to 1955 by the Doc from 1985. The answer is yes.