The input is taken from a negotiation between two participants who take the role of campsite neighbors and negotiate for Food, Water, and Firewood packages, based on their individual preferences and requirements. Given an utterance and recent dialogue context containing past 3 utterances (wherever available), output Yes if the utterance contains the no-need strategy, otherwise output No. no-need is a cooperative negotiation strategy. It is used when a participant points out that they do not need an item based on personal context such as suggesting that they have ample water to spare. no-need can directly benefit the opponent since it implies that the item is up for grabs.

Input: Consider Input: Context: 'hmmm, well what are you looking to get' 'Well, I think that for us staying warm is more important than having extra food. What if I took extra fire wood and you took extra food?' 'That could work, were not really looking to have a big fire'
Utterance: 'Where do you stand on water? We're low , and may need extra in case the fires go out of control'

Output: Yes


Input: Consider Input: Context: 'Since I'm most interested in firewood, I would want 3 waters if you're going to get more firewood.' 'Nice. That's okay with me. You get 3 waters and a I get 3 firewood' 'I was actually saying you get 2 firewood and I get 3 waters. Then you could have 2 food and I get 1 food.'
Utterance: 'That's seems fair to me since we all need food to eat'

Output: No


Input: Consider Input: Context: 'Great thank you. I am looking for primarily some firewood and food for my camping trip soon. ' 'I'm going camping too and also need food and wood, mostly food though' 'Okay I understand that! Is there a particular reason that you do not need much water?'
Utterance: 'I figure I could always get some at the stream 🙂'


Output: Yes