you are likely to find Food in/at/on Jar. Food is related to Preserve. Cure is a type of Preserve. Cure is a synonym of Heal. 
British is related to Guard. Guard is related to Policeman. 
Jar <--AtLocation-- Food <--RelatedTo--> Preserve <--IsA-- Cure <--Synonym--> Heal 
British <--RelatedTo--> Guard <--RelatedTo--> Policeman 