Les expositions comprennent la plus importante collection de véhicules militaires canadiens au monde, dont 50 sont toujours en état de fonctionner.

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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.
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The exhibits include the world’s largest collection of Canadian Military Pattern vehicles, 50 of which are still in working order.