Couch is related to Large. Large is related to Poster. Poster is related to College. 
Small is related to Jacket. Jacket is a synonym of Case. Case is related to Lawyer. 
Couch <--RelatedTo--> Large <--RelatedTo--> Poster <--RelatedTo--> College 
Small <--RelatedTo--> Jacket <--Synonym--> Case <--RelatedTo--> Lawyer 