Rough is similar to Broken. Broken is related to Stick. Stick is the opposite of Hit. Pitch is a type of Hit. 
Contribution is a synonym of Part. Part is related to Paper. Paper is related to Box. 
Rough <--SimilarTo--> Broken <--RelatedTo--> Stick <--Antonym--> Hit <--IsA-- Pitch 
Contribution <--Synonym--> Part <--RelatedTo--> Paper <--RelatedTo--> Box 