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: 'Hello - I would love be able to split some supplies with you🙂. I could use some extra firewood so maybe i could take 3 and maybe you could have some extra food? ' 'Maybe I could take 2 firewood 2 food and 0 waters?'
Utterance: 'I was planning on staying up all night and keeping my fire going all night.  Honestly I could give you all the extra food if that helps you if I could please have the 3 firewood?  We could split the waters'
[EX A]: Yes

[EX Q]: Context: 'I am trying to gather supplies for the trip. What about you?' 'I am also checking my list and updating it. How is your progress going?' 'Its good! I am looking forward to the activites i'll be doing, such as campfires.'
Utterance: 'Hey, that's great. Good to hear definitely. I am also looking forward to build some campfires and enjoy some s'mores!'
[EX A]: Yes

[EX Q]: Context: 'Can you explain yourself better? What you need the least is food?' 'i mean i will be needing 3 water 2 firewood and 1 food' 'I can't give you that since it wouldn't be fair to me, I'll give you a better offer. I get 3 food 1 water 0 firewood and you get 0 Food 2 water and 3 firewood and 2 fire'
Utterance: 'no am not accepting that 2 water 2 firewood and 1 food'
[EX A]:
No