Trade is related to Free. Free is related to Rest. Rest is a synonym of Remaining. 
Trait is related to Time. Time can be used for Think. Think is related to Opinion. Opinion is a synonym of View. 
Trade <--RelatedTo--> Free <--RelatedTo--> Rest <--Synonym--> Remaining 
Trait <--RelatedTo--> Time --UsedFor--> Think <--RelatedTo--> Opinion <--Synonym--> View 