Paper is the opposite of Change. Change is related to Spare. Spare is a synonym of Trim. 
Guarantee is a synonym of Ensure. Ensure is a synonym of See. See is related to Sheer. 
Paper <--Antonym--> Change <--RelatedTo--> Spare <--Synonym--> Trim 
Guarantee <--Synonym--> Ensure <--Synonym--> See <--RelatedTo--> Sheer 