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: 'Well that is going to be a problem then because I have a medical condition too. How can we meet in the middle? I get 2 water, 2 food and no firewood?' 'I really need that water. I'm going camping in the desert where firewood will be vital for me as well. How about I take 2 water, 2 firewood and you get 1 water, 1 firewood and all the extra food?' 'That works. Deal🙂'
Utterance: 'Sounds good. It was nice working with you. 🙂'
[EX A]: No

[EX Q]: Context: 'It's been so cold these last few days, I'm worried that I didn't bring enough wood for the next few nights.' 'That is unfortunate. How about I give you are my firewood for all your food?'
Utterance: 'That is a very generous offer but I think I need to keep some food to be safe. Do you need any water?'
[EX A]: No

[EX Q]: Context: 'Zero water is not going to work 😮. I am willing to switch water and firewood amounts so that I get 2 firewood and 1 water and you get 2 water and 1 firewood. ' 'Alright. But than I will need at least 1 food than. So it would be 2 water for me 1 for you, 1 food for me 2 for you and 1 firewood for me and 2 for you. 🙂' 'I think that sounds ok, I will make that deal with you whenever we can go through with it. 🙂'
Utterance: 'Smashing🙂 Sounds good with me. Happy to get it all sorted out. cheers'
[EX A]:
No