you are likely to find Dog in/at/on Couch. Couch is the opposite of Exercise. Exercise is related to Muscle. 
Contest is related to Reward. Reward is related to Ad. Ad is related to Uncertainty. Uncertainty is a synonym of Doubt. 
Dog --AtLocation--> Couch <--Antonym--> Exercise <--RelatedTo--> Muscle 
Contest <--RelatedTo--> Reward <--RelatedTo--> Ad <--RelatedTo--> Uncertainty <--Synonym--> Doubt 