Paper is related to White. White is related to Milk. 
Discount is a type of Decrease. Discount is a synonym of Reduction. Reduction is related to Cut. Cut is related to Slice. 
Paper <--RelatedTo--> White <--RelatedTo--> Milk 
Decrease <--IsA-- Discount <--Synonym--> Reduction <--RelatedTo--> Cut <--RelatedTo--> Slice 