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.
One example is below.
Q: Context: 'That sounds pretty reasonable as I am in need of firewood the most. Would it be most reasonable to each take what we need most and split the water down the middle?' 'Yes, it would.' 'I think that sounds fair. The problem is that there are 3 waters and one of us would get two and the other one. How should we sort that?'
Utterance: 'You can take the two water. I am not that thirsty most days.'
A: No
Rationale: In this utterance, the participant does not use self-need since they do not talk about any need for themselves.
Q: Context: 'Okay, how about if I give you 3 foods and you give me the 2 firewoods and 2 waters?' 'THanks, but I really need the water. I thought you would enjoy the food with so  many guests in your campsite. Is that a possibility?' 'I don't need 3 foods and we already agreed on 2 firewood, 1 water and 2 food. If that is not possible, I wonder if we can not make a deal '
Utterance: 'Okay.  I will agree as the firewood is very important to me. The food will also come in handy on my long hike up the mountain.  Stay safe and have fun. '
A:
Yes