Budget is a type of Calculate. Budget is related to Economy. Economics is etymologically related to Economy. 
Odd is related to Fellow. Fellow is the opposite of Lady. Lady is related to Woman. Woman is related to Broad. 
Calculate <--IsA-- Budget <--RelatedTo--> Economy <--EtymologicallyRelatedTo-- Economics 
Odd <--RelatedTo--> Fellow <--Antonym--> Lady <--RelatedTo--> Woman <--RelatedTo--> Broad 