Full is the opposite of Seed. Seed is related to Corn. Corn is related to Farm. Farm is related to Agricultural. 
Household is derived from House. you are likely to find Bed in/at/on House. Bed is related to Asleep. 
Full <--Antonym--> Seed <--RelatedTo--> Corn <--RelatedTo--> Farm <--RelatedTo--> Agricultural 
Household --DerivedFrom--> House <--AtLocation-- Bed <--RelatedTo--> Asleep 