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: 'Hello! Great to see another camper here going for a hike. My family is looking forward to a great weekend here.🙂' 'Mine too! Camping is one of my favorite things to do with my family.'
Utterance: 'It should be a good weekedn for it. Unfortuately the air;ine loss our luggage with the sleeping bags and food. Not a good start for us with my mother-in-law along for the first time. My wife and her is down getting trail maps while I sort out keeping warm tonight and feed after some hiking.'

A: Yes
****
Q: Context: 'i really need water and food. we did not get enough of those.' 'Those are my priorities as well, how about you get all the food and two firewoods, and i get all the water and one firewood, does that sound fair?' 'i would prefer water instead of food if possible, but i am sure we can work it out.'
Utterance: 'water is really important for me, how about i get two waters and three firewoods and you get three foods and one water?'

A: Yes
****
Q: Context: 'I'm afraid I also have need of the firewood. I have anaemia so i get cold easily so I need to make sure I have adequate firewood or i may freeze at night. I also have a thin clothing so they wont provide adequate warmth. How about all of my water and 2 food for all of the firewood?' 'Seeing as we both have a medical-necessity for the firewood, it's rather unfair that either one of us take ALL of the firewood. I felt that I was being rather generous with my previous offer.' 'you are right we both need the wood, how about i give 1 wood, all of my water and 2 food and you give 2 wood and 1 food?'
Utterance: 'Where are you camping? Perhaps we can compromise by having our tents nearby each other, which would be like we each get three firewood? I am not willing to trade my package of marshmallows, though.'

A:
Yes
****