Difference is related to Distinguish. Distinguish is etymologically related to Style. Style is a synonym of Title. Title is related to Minister. 
you are likely to find Wing in/at/on Hospital. you are likely to find Cord in/at/on Hospital. Cord is part of Telephone. 
Difference <--RelatedTo--> Distinguish --EtymologicallyRelatedTo--> Style <--Synonym--> Title <--RelatedTo--> Minister 
Wing --AtLocation--> Hospital <--AtLocation-- Cord --PartOf--> Telephone 