Develop is a synonym of Train. Train is a synonym of Prepare. Prepare is a type of Sound. 
Snow is the opposite of Sun. Sun is related to Outer. Outer is related to Shoe. 
Develop <--Synonym--> Train <--Synonym--> Prepare --IsA--> Sound 
Snow <--Antonym--> Sun <--RelatedTo--> Outer <--RelatedTo--> Shoe 