Context: 'Okay when we are not camping we work at night so we are use to being up at night so we like extra firewood just to sit around campfire and chat' 'Yours is still better.You using it for cht but we seriously need it for survival.But i can give you a firewood and a pakage of water in exchange for two firewoods.What do you think?' 'Well how about I get two firewood and you can have all the water.'
Utterance: 'hummmm...let me have two food and and 3 water in exchange of 2 firewood'