Protection is related to Guard. Guard is related to Duty. Duty is the opposite of Right. Right is a synonym of Proper. 
Journalist is derived from Journal. you are likely to find Study in/at/on Journal. Study is related to Physician. 
Protection <--RelatedTo--> Guard <--RelatedTo--> Duty <--Antonym--> Right <--Synonym--> Proper 
Journalist --DerivedFrom--> Journal <--AtLocation-- Study <--RelatedTo--> Physician 