Runner is a type of Traveler. Carrier is a type of Traveler. Carrier is related to Sheep. Sheep is related to Pig. 
Hill is related to Round. Round is a synonym of Whole. Compound is a type of Whole. 
Runner --IsA--> Traveler <--IsA-- Carrier <--RelatedTo--> Sheep <--RelatedTo--> Pig 
Hill <--RelatedTo--> Round <--Synonym--> Whole <--IsA-- Compound 