Prevail is a type of Win. Win is related to Internet. Internet is related to Back. Back is related to Rest. 
Shortage is the opposite of Mountain. Mountain can be used for Show. Show is a synonym of Exhibition. 
Prevail --IsA--> Win <--RelatedTo--> Internet <--RelatedTo--> Back <--RelatedTo--> Rest 
Shortage <--Antonym--> Mountain --UsedFor--> Show <--Synonym--> Exhibition 