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: 'I good thank you.  Yes, I am excited about this trip but I have been worrying about how I can get more firewood.  A raccoon came and stole mine this morning from the campsite.  So would it be alright if I kept all 3 firewoods?' 'No, I have all of my children here with me, they are all afraid of the dark so must burn the fire all night, as I brought no additional source of lighting.' 'ok, fair enough.  How about I take 2 firewood as 1 should do you for a couple nights. I also have small children with me and would like to have the fire burning at all times to keep the bugs away. '
Utterance: 'I really dont see giving up that much of the wood as I cannot risk running out myself. We are camping way too far out to get access to additonal lighting. I tell you what if you will let me have 2 of the fire wood I would be willing to give you two of the food items. I know that racoon probably took your food as well!!'
Student:
Yes