Custom is a type of Survival. Survival is related to Eat. Eat is related to Necessary. 
Cut is a type of Free. Free is a synonym of Liberal. Liberal is related to Left. 
Custom --IsA--> Survival <--RelatedTo--> Eat <--RelatedTo--> Necessary 
Cut --IsA--> Free <--Synonym--> Liberal <--RelatedTo--> Left 