Letter is related to Envelope. Envelope cannot be Alive. Bed cannot be Alive. you are likely to find Trash in/at/on Bed. 
Very is related to Important. Important is similar to Serious. Serious is related to Drama. 
Letter <--RelatedTo--> Envelope --NotHasProperty--> Alive <--NotHasProperty-- Bed <--AtLocation-- Trash 
Very <--RelatedTo--> Important <--SimilarTo--> Serious <--RelatedTo--> Drama 