Authority is related to Captain. Captain is etymologically related to Cap. 
Trade is a type of Business. Trade is related to Foreign. Foreign is the opposite of Local. Local is a different concept from Distant. 
Authority <--RelatedTo--> Captain --EtymologicallyRelatedTo--> Cap 
Business <--IsA-- Trade <--RelatedTo--> Foreign <--Antonym--> Local <--DistinctFrom--> Distant 