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.

[Q]: Context: 'Happy birthday to your dad!! You can have all of the food if I can have all of the water. 🙂' 'That' 'Will that work for you? If so, we can talk about the firewood. 🙂'
Utterance: 'Sorry, submitted too early! That sounds good to me! If I can have all the food, you can take 2 of the firewood and I'll take one. Plus you take all of the water.'
[A]: No


[Q]: Context: 'What is on your most needed item?' 'I need Food, what is yours?' 'I kinda need water because I get dry mouth very often.  so without water it will make it hard to achieve getting other items in the wilderness.'
Utterance: 'Ok thats nice, I need food more because I didn't bring much and that a problem,  What do you think if I give you 2 wood and you give me 2 food?'
[A]: Yes


[Q]: Context: 'im sorry i mistyped. okay yes thats a deal. so last we have to talk about the wood. what do you think' 'Oh yes, sorry I am so caught up with my wound I completely forgot about that. I can spare 1 firewood so you would get 2, do you think you could spare another water in exchange for the wood?' 'i cant unfortunately i really need the two water im sorry. '
Utterance: 'im so sorrry unfortunately i am in dire need of two wood we are in a very cold climate'
[A]:
Yes