Expression is related to Shock. Shock is related to Fear. Fear is related to Feeling. Feeling is related to Calm. 
Cord is a type of Line. Guideline is a type of Line. Guideline is derived from Guide. 
Expression <--RelatedTo--> Shock <--RelatedTo--> Fear <--RelatedTo--> Feeling <--RelatedTo--> Calm 
Cord --IsA--> Line <--IsA-- Guideline --DerivedFrom--> Guide 