Depend is a type of Be. Begin is a type of Be. 
Magnitude is related to Quantity. Constant is a type of Quantity. Constant is a synonym of Steady. Steady is a synonym of Calm. 
Depend --IsA--> Be <--IsA-- Begin 
Magnitude <--RelatedTo--> Quantity <--IsA-- Constant <--Synonym--> Steady <--Synonym--> Calm 