Quality can be Reliable. Difference is a type of Quality. Difference is a synonym of Distinguish. Distinguish is the opposite of Common. 
Want is related to Extreme. Extreme is a synonym of Ultimate. 
Reliable <--HasProperty-- Quality <--IsA-- Difference <--Synonym--> Distinguish <--Antonym--> Common 
Want <--RelatedTo--> Extreme <--Synonym--> Ultimate 