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! Thats terrible that the airline lost your bags! I'm planning on have a large group of friends with me so we need lots of snacks with us. We are scared of fires so we don't want to make campfires.' 'Well maybe we can work something out between us.  Our food and water was in the bags they loss so I really need those.  Do you think you could make do with 1 food and some water?' 'I really need 2 foods. I can do with 1 water or if you are in a giving mood then maybe I can have 2 waters? 🙂'
Utterance: 'Looks like we both really need the food.  If you get 2 food I would need 1 food, 2 water and 3 firewood. '
[A]: Yes


[Q]: Context: 'Hello! I'm packing for my camping adventure.' 'I am too.  I am so looking forward to this.  ' 'Yes! I am so on the same page as you. I want to be sure I'm set and prepared. 🙂'
Utterance: 'Would you consider letting me have 2 of the 3 extra firewood?  I have health issues and I get really cold sometimes.☹️'
[A]: Yes


[Q]: Context: 'So now you need 3 firewood with 1 food. Am I correct?🙂' 'Yes, that sounds fair to me. Although I would be willing to take a water if you're offering it, I am not quite as lucky with water. ☹️' 'How It will be. you already told that, you have lot of food with you. So can you please think how it will be. you can take all 3 firewood with 1 water and I will take all 3 foods packages and 2 water.'
Utterance: 'That sounds fair. I will accept that, all I really need is the firewood anyways! Thank you so much.'
[A]:
Yes