Given the following reasoning and answer, what was the question? Senegal was part of the Empire of France.
 The answer: yes

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 question Is the following a factual statement?
"A European nation once colonized Senegal."
Options:
- yes
- no