Given the sentence "A stream of men wearing old century viking costumes and armor are marching along a walkway with stone buildings in the background." is it true that "Some men in costumes are heading to a viking larp meetup."? Let's be accurate as possible and think first.

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
A stream of men wearing old century viking costumes and armor are not necessarily heading to a viking LARP meetup. Final answer: it is not possible to tell.