Bet is a synonym of Stake. Stake is related to Killing. Killing can cause/lead to Death. Death is created by Murder. 
Convention is a synonym of Normal. Normal is the opposite of Reverse. Reverse is part of Car. Car is related to Object. 
Bet <--Synonym--> Stake <--RelatedTo--> Killing --Causes--> Death --CreatedBy--> Murder 
Convention <--Synonym--> Normal <--Antonym--> Reverse --PartOf--> Car <--RelatedTo--> Object 