Kill is related to Bloody. Bloody is a synonym of Fucking. 
Voluntary is the opposite of Duty. Duty is related to Learn. Learn is related to Function. Function is a synonym of Affair. 
Kill <--RelatedTo--> Bloody <--Synonym--> Fucking 
Voluntary <--Antonym--> Duty <--RelatedTo--> Learn <--RelatedTo--> Function <--Synonym--> Affair 