Store is related to Can. Can is a synonym of Sack. 
Artist is related to Guy. Guy is related to Reference. you are likely to find Reference in/at/on Library. you are likely to find Paper in/at/on Library. 
Store <--RelatedTo--> Can <--Synonym--> Sack 
Artist <--RelatedTo--> Guy <--RelatedTo--> Reference --AtLocation--> Library <--AtLocation-- Paper 