Provoke is a synonym of Stimulate. Fuel is a type of Stimulate. Fuel is related to Natural. 
Asleep is the opposite of Conscious. Conscious is a synonym of Aware. Awareness is derived from Aware. 
Provoke <--Synonym--> Stimulate <--IsA-- Fuel <--RelatedTo--> Natural 
Asleep <--Antonym--> Conscious <--Synonym--> Aware <--DerivedFrom-- Awareness 