Species is related to Human. Human is related to Work. Work is related to Boss. Supervisor is a type of Boss. 
Play is related to School. School is related to Popular. Popular is related to Standing. Standing is related to Leg. 
Species <--RelatedTo--> Human <--RelatedTo--> Work <--RelatedTo--> Boss <--IsA-- Supervisor 
Play <--RelatedTo--> School <--RelatedTo--> Popular <--RelatedTo--> Standing <--RelatedTo--> Leg 