Heat is related to Fuel. you are likely to find Fuel in/at/on Plane. 
Protest is the opposite of Working. Working is related to Desk. you are likely to find Light in/at/on Desk. Sun can be used for Light. 
Heat <--RelatedTo--> Fuel --AtLocation--> Plane 
Protest <--Antonym--> Working <--RelatedTo--> Desk <--AtLocation-- Light <--UsedFor-- Sun 