Uncertainty is a different concept from Sure. Sure is a synonym of Ok. Ok is the opposite of Sick. 
Reaction is related to Fire. Fire is related to Element. Element is related to Wind. Wind is related to Phenomenon. 
Uncertainty <--DistinctFrom--> Sure <--Synonym--> Ok <--Antonym--> Sick 
Reaction <--RelatedTo--> Fire <--RelatedTo--> Element <--RelatedTo--> Wind <--RelatedTo--> Phenomenon 