Yes / no, is the following a verifiable fact?
"Alexander Scriabin danced before he went to bed each night."
Chain of thought and solution for this question is:

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
I think the sentence is false because there is no evidence (physical evidence) that Alexander ever did this.
So, the answer is no.