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: 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.'
Solution is here: No
Explanation: In this utterance, the participant does not use self-need since they do not talk about any need for themselves.

Now, solve this: Context: 'Hello how are you, I was wondering if its okay with you, If i can get 3 waters, 2 firewoods, and 1 food? what are your thoughts?' 'i cant afford to give you all 3 waters because i would need some for myself' 'I completely understand, I have a large family coming along, I really need the extra supplies, as for the food and firewood are you okay with the amount? '
Utterance: 'i am an avid water drinker. i can afford to give you 2 water for three firewood though'
Solution:
Yes