Question: What is the distance of the sister sport event of the Ultra-Trail Mt. Fuji?
Sentence (from "Ultra-Trail Mt. Fuji"): The Ultra-Trail Mt. Fuji (ウルトラトレイル・マウントフジ , urutoratoreirumountofuji ) is an annual ultramarathon sporting event in Yamanashi Prefecture and Shizuoka Prefecture, Japan, started in 2012.
Relevant evidence: No