Coach is a type of Wagon. Coach is a type of Manager. Manager is related to Team. Offense is a type of Team. 
Wealth is related to Earn. Earn is related to Gain. 
Wagon <--IsA-- Coach --IsA--> Manager <--RelatedTo--> Team <--IsA-- Offense 
Wealth <--RelatedTo--> Earn <--RelatedTo--> Gain 