Prayer is related to Deliver. Serve is a type of Deliver. Serve is a synonym of Assist. 
Surprise is related to General. General is related to Conflict. War is a type of Conflict. War is related to Fighting. 
Prayer <--RelatedTo--> Deliver <--IsA-- Serve <--Synonym--> Assist 
Surprise <--RelatedTo--> General <--RelatedTo--> Conflict <--IsA-- War <--RelatedTo--> Fighting 