I need the food and water.  You can have all the firewood.
hello how are you?  I need the food the most because I ran off and left mine sitting on my kitchen counter.  I think we can agree upon you having 2 water but I need 2 food
I'm going hiking, and I really need food, it works up an appetite.
Well I didn''t bring any with me so I really need two.  I am willing to give you 2 waters.🙂
I also need the water, because it's not safe to drink from streams here.  
You are right, my water is dirty also but I am willing to let you have all three water. I would rather eat, so I would like 2 food.
Well, if I have to catch fish to eat, I'll need the firewood to cook them.
ok, so what at I get 2 firewood and you get 1 so you can cook your fish.
I'll really need 2 firewood if we do this.
I need the firewood also because this campsite is bare and the little bit of wood I did have a raccoon came and stole it.☹️
Okay, how about I get 1 food, three water, and 1 firewood?
okay that works for me