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: 'Hey!  I hope you're having a good week and staying well.  So we are negotiating on supplies! 🙂' 'Yes. Hoping we can make a good deal.' 'Me too!  I'm hoping for two food items and one water.  I'm diabetic so if my blood sugar drops, I may need the extra carbs.  And water because water is important! 🙂 '
Utterance: 'I prefer two water and one food. I can understand why you need the extra food items. I'm not much of a snacker but do drink a lot of water all the time. Keeps me from eating more!🙂'

Output: Yes


Input: Consider Input: Context: 'I have an extra person camping with us that I didn't expect when I bought food, so I could use one if you're willing 🙂' 'I understand that! I wasn't expecting to stay an extra night, but the weather is too perfect to leave. I can manage with two packages of food for sure. 🙂' 'Great!  Thank you for being so understanding!'
Utterance: 'No problem! So are we in agreement that I get 2 food, 1 water and you get the reverse? I could also probably use one firewood, but it's not as important to me.'

Output: Yes


Input: Consider Input: Context: 'Yah we have a few things planned. One of the things they are looking forward to is reading scary stories by the campfire and making s'mores' 'That sounds like a lot of fun. What do you think you will need for that experience?' 'We likely need a lot of firewood and some water to put out the fire when we are done lol. What are you thinking?'
Utterance: 'Yea, I'm not too into firewood because it will be quite hot when I make my camping trip. I could definitely use some more food just in case of an emergency out there.'


Output: Yes