Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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: No
Reason: In this utterance, the participant does not use self-need since they do not talk about any need for themselves.

Now, solve this instance: Context: 'Since you will get all the fire would do you think I could have 2 foods and 2 waters. You would get 1 food, 1 water, and 3 firewood. 🙂 You seem like you are a great outdoor person that I would think you would be able to catch some fish to cook with the firewood. 🙂' 'No that does work well for me.  If I only have 1 food I need 2 waters and the firewood to make up for the loss of food.' 'What about I have all the food, and you can have everything else? I would think that seems pretty fair.'
Utterance: 'Sorry, I understand where you are coming from but I really need at least one food.  '
Student:
Yes