Chill is a synonym of Stone. Stone is related to Wall. Course is part of Wall. 
Number is a type of Company. Number is related to Population. Population is related to Group. Group is a synonym of Cluster. 
Chill <--Synonym--> Stone <--RelatedTo--> Wall <--PartOf-- Course 
Company <--IsA-- Number <--RelatedTo--> Population <--RelatedTo--> Group <--Synonym--> Cluster 