Context: 'I think I can get by with 2 firewood, and give you 1.' 'Hmm, I think I need firewood more than anything else. Would you take 1 firewood and 2 food?' 'If I do that, I will need all the food, since I won't be able to cook much fish.'
Utterance: 'I see. I do need at least 1 food package because I will be spending lots of calories working. But I can give you all the water.'