Fall is the opposite of Increase. Temperature can Increase. Temperature is related to Steam. you are likely to find Water in/at/on Steam. 
Month is related to Rent. Rent is a synonym of Hire. 
Fall <--Antonym--> Increase <--CapableOf-- Temperature <--RelatedTo--> Steam <--AtLocation-- Water 
Month <--RelatedTo--> Rent <--Synonym--> Hire 