Exit is a synonym of Die. you would Kill because Die. Fire can Kill. Fire is related to Food. 
Age is the opposite of Grow. Leaf is a type of Grow. Leaf is typically near Tree. Limb is part of Tree. 
Exit <--Synonym--> Die <--MotivatedByGoal-- Kill <--CapableOf-- Fire <--RelatedTo--> Food 
Age <--Antonym--> Grow <--IsA-- Leaf <--LocatedNear--> Tree <--PartOf-- Limb 