Coal is related to Solid. Block is a type of Solid. Sector is part of Block. Sector is a type of Aspect. 
War is a type of Fight. Fight is a synonym of Oppose. 
Coal <--RelatedTo--> Solid <--IsA-- Block <--PartOf-- Sector --IsA--> Aspect 
War --IsA--> Fight <--Synonym--> Oppose 