Presidency is related to Elect. Elect is related to Presidential. Presidential is related to Election. 
Nomination is a type of Condition. Condition is the opposite of Heat. Heat is related to Stroke. 
Presidency <--RelatedTo--> Elect <--RelatedTo--> Presidential <--RelatedTo--> Election 
Nomination --IsA--> Condition <--Antonym--> Heat <--RelatedTo--> Stroke 