Senior is etymologically related to Senate. you are likely to find Senior in/at/on Park. you are likely to find Cop in/at/on Park. you are likely to find Cop in/at/on Street. 
Aircraft can be used for Transport. Bay is part of Aircraft. you are likely to find Boat in/at/on Bay. Boat is related to Friendship. 
Senate <--EtymologicallyRelatedTo-- Senior --AtLocation--> Park <--AtLocation-- Cop --AtLocation--> Street 
Transport <--UsedFor-- Aircraft <--PartOf-- Bay <--AtLocation-- Boat <--RelatedTo--> Friendship 