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: 'That's unfortunate. I cannot agree to a deal without 2 pieces of firewood. I would have to walk away, but that would bee worse for both of us.' 'okay fine. will you give additional water?' 'Yes, that would work out. '
Utterance: 'because i have some firewood with myself. i required 1 firewood, 2 water and 1 food'

Output: Yes


Input: Consider Input: Context: 'Howdy! How are you?' 'I am dong just fine! and you?' 'Pretty good! I am excited about going camping though. When we split this, what do you need the most?'
Utterance: 'We are all about the food over here! what about you?'

Output: No


Input: Consider Input: Context: '2 adults and 3 children, so if I get 2 food and 1 water, you could get 1 food and 2 water? ' 'I believe we can work with 1 food and 2 waters.🙂' 'So 1 package of firewood, 2 food and 1 water for me and 2 packages of  firewood, 1 food and 2 waters for you? Sound good? '
Utterance: 'Yes I get 2 packages of firewood, 1 food and 2 waters. Sounds like a good deal.🙂'


Output: No