Cover is a type of Be. Depend is a type of Be. Dependent is derived from Depend. 
Illustrate is related to Draw. Pump is a type of Draw. Pump is a synonym of Heart. Heart is related to Organ. 
Cover --IsA--> Be <--IsA-- Depend <--DerivedFrom-- Dependent 
Illustrate <--RelatedTo--> Draw <--IsA-- Pump <--Synonym--> Heart <--RelatedTo--> Organ 