Competitive is similar to Aggressive. Aggressive is related to War. War can be used for Control. Control is related to Tide. 
Source is a type of Obtain. Source is related to Coal. Coal is related to Generation. 
Competitive <--SimilarTo--> Aggressive <--RelatedTo--> War --UsedFor--> Control <--RelatedTo--> Tide 
Obtain <--IsA-- Source <--RelatedTo--> Coal <--RelatedTo--> Generation 