Killing requires Rage. Rage is a type of Anger. Anger is related to Mad. 
Provoke is a synonym of Stimulate. Stimulate is a synonym of Shake. Shake is related to Nod. Nod is related to Head. 
Killing --HasPrerequisite--> Rage --IsA--> Anger <--RelatedTo--> Mad 
Provoke <--Synonym--> Stimulate <--Synonym--> Shake <--RelatedTo--> Nod <--RelatedTo--> Head 