Okay is related to Occasion. Sale is a type of Occasion. Sale is a synonym of Deal. 
Structural is related to Column. Column is related to Measure. Measure is related to Heat. 
Okay <--RelatedTo--> Occasion <--IsA-- Sale <--Synonym--> Deal 
Structural <--RelatedTo--> Column <--RelatedTo--> Measure <--RelatedTo--> Heat 