Fate is related to Life. Breathing can be used for Life. Breathing is related to Sigh. Sigh is related to Expression. 
Degree is related to Master. Master is related to Leader. Leader is related to Man. Boyfriend is a type of Man. 
Fate <--RelatedTo--> Life <--UsedFor-- Breathing <--RelatedTo--> Sigh <--RelatedTo--> Expression 
Degree <--RelatedTo--> Master <--RelatedTo--> Leader <--RelatedTo--> Man <--IsA-- Boyfriend 