Advantage is related to Have. Have is related to Necessary. Necessary is related to Eat. you would Eat because Survive. 
Council is related to Leadership. President can be used for Leadership. President is related to Head. 
Advantage <--RelatedTo--> Have <--RelatedTo--> Necessary <--RelatedTo--> Eat --MotivatedByGoal--> Survive 
Council <--RelatedTo--> Leadership <--UsedFor-- President <--RelatedTo--> Head 