Asset is the opposite of Garbage. Garbage is related to Rat. Rat is related to Small. Small is related to Nose. 
Pit is related to Grave. Grave is related to Very. 
Asset <--Antonym--> Garbage <--RelatedTo--> Rat <--RelatedTo--> Small <--RelatedTo--> Nose 
Pit <--RelatedTo--> Grave <--RelatedTo--> Very 