Catalog is a type of List. Gay is etymologically related to List. 
Make is related to Plan. Plan is a type of Idea. Suggestion is a type of Idea. Hint is a type of Suggestion. 
Catalog --IsA--> List <--EtymologicallyRelatedTo-- Gay 
Make <--RelatedTo--> Plan --IsA--> Idea <--IsA-- Suggestion <--IsA-- Hint 