I need all three of the firewood and three water.  You can have all the food.
😮 May I ask why? I do need food, but I need some firewood as well.
I need firewood to cook the fish I plan to catch.  I don't really need more food, but I can use a little water too, since it's warm.
I need firewood, because I have a medical condition that causes my veins to close if I get too cold at night. I don't mind sharing the water.
Can you get by with one firewood?  If I give it up, I'll need some food, since I won't have enough to cook all the fish.
I could give you 1 firewood, 2 waters, and 1 food. 
If you make it two food, we have a deal.
I would rather let you have the third water than other food. I don't like fish. ☹️
Okay, you can have two firewood and and two food, I'll take the rest.
Ok. That seems fair enough to me.
Looks like we have a deal!