Democracy is related to Rule. Rule is related to Policy. Policy is related to Foreign. 
Pork is a different concept from Beef. Beef is related to Hide. Hide is related to Place. 
Democracy <--RelatedTo--> Rule <--RelatedTo--> Policy <--RelatedTo--> Foreign 
Pork <--DistinctFrom--> Beef <--RelatedTo--> Hide <--RelatedTo--> Place 