Estate is a type of Car. Car is related to Deliver. Land is a type of Deliver. Arrive is etymologically related to Land. 
Clock is related to Bed. Bed is related to Spring. Spring is a synonym of Free. Free is a synonym of Liberal. 
Estate --IsA--> Car <--RelatedTo--> Deliver <--IsA-- Land <--EtymologicallyRelatedTo-- Arrive 
Clock <--RelatedTo--> Bed <--RelatedTo--> Spring <--Synonym--> Free <--Synonym--> Liberal 