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.

[EX Q]: Context: 'What if I take 1 more firewood, so I would have 2?' 'I mean I would gladly trade a water and firewood for one of your extra food. ' 'No, I really do need the food the most. Let's go back to your original deal? I'll take 2 foods, you get one. I'll take 1 water, 1 firewood, and you take the rest? Do I have that right?'
Utterance: 'Yup'
[EX A]: No

[EX Q]: Context: ' The item I need the most is water because I need to hydrate to stay strong and achieve my goals. And you?' 'I would say water as well because I am very active and build up thirst as a result.  However, I would be willing to compromise on things to allow you to have more water.' 'The item that I need the least is firewood because I will dedicate myself to look it up at the camp. And you?'
Utterance: 'Yes I think we have the same preferences.  I do not get cold easily and will bring a heavy sleeping bag.  '
[EX A]: Yes

[EX Q]: Context: 'I can definitely relate to that, I have family members with type 2 so I know how bad that can get' 'Yes definitely! It is a pain for sure, but I love camping so I still want to go! I just have to make sure I have all the supplies I need. ' 'I can do without extra water as long as I have food and firewood to purify water I find.  It might be better for you to have a reliable supply though.'
Utterance: 'That totally makes sense! I actually am good on firewood thankfully, I got some from a person selling it from their yard a little bit ago.'
[EX A]:
Yes

