Context: 'Yes.  I have 2 children so I was thinking that I will need extra water. 🙂' 'I too need extra water, but I'm willing to negotiate on the other things if you are! 🙂' 'If I take 2 waters, will you accept 2 firewood?'
Utterance: 'You take 2 waters, I'll take 2 firewood and 2 food?'