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.

[EX Q]: Context: 'We will have 50 adults with us. How about 2 firewood, 1 food, 1 water for you?🙂' 'lots of work for the both of us, at least you will have lots of help on you end. I accept the 2 firewood specially if you have elderly with you. will you be okay if give me 2 foods? ' 'True, 2 firewood and 2 food for you and I'll take 3 waters.'
Utterance: 'that sounds perfect! thank you so much for understand and wish me luck with all of the little rascals im taking. to verify, I will be taking 2 FW, 2 Foods and 0 waters'
[EX A]: No

[EX Q]: Context: 'Hello, I'm hopping I could grab most of the food, I have a lot of hungry mouths to feed.' 'Hi - I can understand that. I have quite a few mouths to feed as well' 'hmmm, well what are you looking to get'
Utterance: 'Well, I think that for us staying warm is more important than having extra food. What if I took extra fire wood and you took extra food?'
[EX A]: Yes

[EX Q]: Context: 'I really appreciate that. Do you think you will be okay with just 1 water since you have health issues?' 'That would be very nice, but I worry about you not having enough on the trail.  Dehydration would not be good.  I am pretty sure I can ration my supply to make it last.  🙂' 'You're a good friend! I'm excited to embark on this adventure! 🙂🙂🙂'
Utterance: 'Me too!  So let me clarify:  I will take 2 firewood, 1 water and 1 food.  You will take 1 Firewood, 2 water and 2 food.  Is that right.  🙂🙂🙂'
[EX A]:
No