Iraqi is related to Oil. Oil is a different concept from Coal. 
Absolute is related to Real. Real is related to Legitimate. Legitimate is a synonym of Logical. Logical is related to Science. 
Iraqi <--RelatedTo--> Oil <--DistinctFrom--> Coal 
Absolute <--RelatedTo--> Real <--RelatedTo--> Legitimate <--Synonym--> Logical <--RelatedTo--> Science 