Chip is related to Lay. Lay is related to Potato. you are likely to find Potato in/at/on Pot. 
Bullet is related to Pistol. Kill requires Pistol. 
Chip <--RelatedTo--> Lay <--RelatedTo--> Potato --AtLocation--> Pot 
Bullet <--RelatedTo--> Pistol <--HasPrerequisite-- Kill 