Hello 
Hello! I am excited for my upcoming camping trip. Mostly I will need water. How about you?
I would need more firewood for my camping trip. 
That is good to know. Firewood Isn't very important to me, so you are welcome to all of that if you need it. 
It's nice to know the firewood is not important to your camping trip. I'm glad I can have all the firewood to myself. How do we get to share the other resources. 
Actually, I think I may need more food than water. How about I take the food and we can split the water. You may have 2 waters, if you need them.
Sure then. You can take all the food. It's not really a priority to me. 
Great. So if I have three food and one water, you can have three firewood and two water. Would that work for your trip?
That's perfect for my camping trip. 
Great! Let's make a deal!