Structure is related to Kind. Kind is related to Fish. Fish is related to Gold. 
Smoke is a different concept from Steam. Steam is related to Like. Like is related to Wash. 
Structure <--RelatedTo--> Kind <--RelatedTo--> Fish <--RelatedTo--> Gold 
Smoke <--DistinctFrom--> Steam <--RelatedTo--> Like <--RelatedTo--> Wash 