Room can be used for Comfort. Room is related to Dining. 
Steam is a type of Clean. Steam is a type of Travel. Withdraw is a type of Travel. Withdraw is a synonym of Swallow. 
Comfort <--UsedFor-- Room <--RelatedTo--> Dining 
Clean <--IsA-- Steam --IsA--> Travel <--IsA-- Withdraw <--Synonym--> Swallow 