Rock is related to Coal. Coal is related to Smoke. Smoke is related to Give. Give is the opposite of Receive. 
Oil is related to Cook. you would Cook because Hungry. 
Rock <--RelatedTo--> Coal <--RelatedTo--> Smoke <--RelatedTo--> Give <--Antonym--> Receive 
Oil <--RelatedTo--> Cook --MotivatedByGoal--> Hungry 