Prove is related to Action. Action is related to Camp. 
Law is etymologically related to Lay. Law is related to Just. Just is the opposite of Unfair. Unfair is similar to Raw. 
Prove <--RelatedTo--> Action <--RelatedTo--> Camp 
Lay <--EtymologicallyRelatedTo-- Law <--RelatedTo--> Just <--Antonym--> Unfair <--SimilarTo--> Raw 