Barrel is related to Beer. Beer is related to Drinking. Spoon can be used for Drinking. you are likely to find Spoon in/at/on Dinner. 
Portrait is related to Painting. 
Barrel <--RelatedTo--> Beer <--RelatedTo--> Drinking <--UsedFor-- Spoon --AtLocation--> Dinner 
Portrait <--RelatedTo--> Painting 