Energy is related to Lightning. Lightning is related to Weather. Fog is part of Weather. 
Problem is related to Break. Break is a type of Weaken. Weaken is the opposite of Strengthen. Strengthen is a synonym of Comfort. 
Energy <--RelatedTo--> Lightning <--RelatedTo--> Weather <--PartOf-- Fog 
Problem <--RelatedTo--> Break --IsA--> Weaken <--Antonym--> Strengthen <--Synonym--> Comfort 