Driving can cause/lead to Fatigue. one thing you do when you Exercise is Fatigue. Exercise is related to Heart. Heart is a type of Symbol. 
Implication is a synonym of Significance. Significance is a type of Importance. Importance is related to Matter. 
Driving --Causes--> Fatigue <--HasSubevent-- Exercise <--RelatedTo--> Heart --IsA--> Symbol 
Implication <--Synonym--> Significance --IsA--> Importance <--RelatedTo--> Matter 