Alcohol is related to Drink. Drink is related to Glass. Glass can Melt. Melt is a synonym of Diminish. 
Type is related to Silk. Silk is the opposite of Rough. 
Alcohol <--RelatedTo--> Drink <--RelatedTo--> Glass --CapableOf--> Melt <--Synonym--> Diminish 
Type <--RelatedTo--> Silk <--Antonym--> Rough 