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 self-need strategy, otherwise output No. self-need is a selfish negotiation strategy. It is used to create a personal need for an item in the negotiation, such as by pointing out that the participant sweats a lot to show preference towards water packages.

[EX Q]: Context: 'My friend ended up having a medical emergency and couldn't go to the store when I asked her to get food. Because of that, I would like 3 food packages. I had to go help her with the medical forms and didn't have time to shop' 'Yes I can give you the three food but I need 2 water. I can become very thirsty. ' 'Yes that is totally fine with me. What about firewood'
Utterance: 'I can give you 1 of the firewood. I would like to stay warm at night so I want 2. 😮'
[EX A]: Yes

[EX Q]: Context: 'I really need some food, but I could also use extra firewood. It is supposed to be pretty cold at night and we would love to cook up some smores.' 'I hear you we have the same issues well you can have either 2 food or 2 firewood what would you prefer?' 'I would prefer 2 food. I could give you 1 food, 2 firewood and 2 water?'
Utterance: 'that sounds like a good deal to me, '
[EX A]: No

[EX Q]: Context: 'Hi there. Hope you too are looking forward to this much needed camping trip. What are your needs in terms of extra packages?' 'Since this is the first time for the family to be camping, having plenty of food for everyone is on the top of my list.'
Utterance: 'I am fine with you having the 3 foods. Is it okay if I have 3 water units We are fasting and need lots of hydration.'
[EX A]:
Yes