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: 'I agree! We can figure out working out a deal! What if I gave you 2 food and 2 waters and you gave me your wood and one of food/water? If that doesn't work for you we can also figure something else out.' 'I think that sounds reasonable. Of course, I could counter with I take 2 food, 2 waters and 1 firewood. What do you think of that?' 'That is also good. This is hard to work out since it's uneven haha. What about if I give you all my food, you give me all your firewood, and then I can give you 2 waters? I think that'd be more fair for you. '
Utterance: 'Awww thank you! That would be sweet of you. I appreciate it very much and would definitely agree to that deal!'
[A]: No


[Q]: Context: 'So why did you decide to come camping?🙂' 'I think it will be fun. I was wondering what your preferences are for the extra items we can bring?' 'I was hoping for food as I forgot a bag at of stuff at home. I also was hoping to star gaze but I may not have enough wood to keep warm.'
Utterance: 'I understand. I too would really like some food because I would get pretty hungry without it and I also forgot to bring some. Firewood is so important for keeping warm. There are three of each item. Maybe we can negotiate on how to split the resources'
[A]: Yes


[Q]: Context: ':) Yes and you know what we are experiencing some difficulty as some people who said initially they were not going to be able to come and at the last minute are saying that they are coming so we are short on the most important items which are food and was wondering if we could speak about sharing items but due to the people who joined late if I can get food and water you can have more wood as none of us know how to really go into the wild and we do not want to turn away our last minute guests, it would be of tremendous help   ' 'I'm more than willing to help you to the best of my ability. I understand and appreciate the difficult situation you find yourself in. How many packages of food and water do you think you will need for your additional guests? How much wood do you need since you are saying you don't need much?' 'Thanks for your understanding well I think if possible then to meet the situation then how bout 3 food and 2 water then you get all the wood ? That way you can have awesome campfires lasting through the night, we will be going to sleep extra early to wake up very early so we do not need all that wood, as much as we need food to replenish our energy and be ready for another day of long walks to see as much as we can from nature 🙂'
Utterance: 'I agree with you that campfires are awesome and I do find them to be be quite useful. I'm not as early of a riser as you are unfortunately! 🙂 I'm willing to accept your offer on food as long as you could please consider my needs for water. I am a very active hiker. While I don't need much food for my hikes I do require a lot of water. I once went on a hiking trip when I was new to the activity and ran out of water. I got lost and almost dehydrated! Ever since then it's been very important to me to have as much water as possible. What would it take in order for me to get as much water as possible keeping in mind that I'm willing to give you 3 food. '
[A]:
Yes