Instruction is a type of Code. Instruction is a synonym of Statement. Statement is a synonym of Argument. Argument is a type of Summary. 
you are likely to find Beer in/at/on Bottle. you are likely to find Neck in/at/on Bottle. 
Code <--IsA-- Instruction <--Synonym--> Statement <--Synonym--> Argument --IsA--> Summary 
Beer --AtLocation--> Bottle <--AtLocation-- Neck 