Exchange is related to Stock. Stock is a type of Supply. Match is a type of Supply. Balance is a type of Match. 
Tight is a synonym of Narrow. Narrow is a synonym of Specialize. 
Exchange <--RelatedTo--> Stock --IsA--> Supply <--IsA-- Match <--IsA-- Balance 
Tight <--Synonym--> Narrow <--Synonym--> Specialize 