Cooperation is a type of Practice. Practice requires Effort. 
Dangerous is related to Vulnerable. Vulnerable is the opposite of Immune. Immune is a type of Person. Person wants (to) Surprised. 
Cooperation --IsA--> Practice --HasPrerequisite--> Effort 
Dangerous <--RelatedTo--> Vulnerable <--Antonym--> Immune --IsA--> Person --Desires--> Surprised 