Question is related to Guess. Guess is a synonym of Hazard. 
Snow is a different concept from Fire. Fire requires Oxygen. Oxygen is related to Life. Life is related to Sentence. 
Question <--RelatedTo--> Guess <--Synonym--> Hazard 
Snow <--DistinctFrom--> Fire --HasPrerequisite--> Oxygen <--RelatedTo--> Life <--RelatedTo--> Sentence 