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: 'Well it's important for both of us to get that wood ! ' 'In order to get all food, can you give me additional firewood?' 'How about I do: 2 firewood, 2 food and 1 water?'
Utterance: 'Well, what would it take for you to give up extra wood? '
[A]: No


[Q]: Context: 'Hi, I'd like 3 packages of food. I have diabetes and my blood sugar could drop.'
Utterance: 'oh dear, I am sorry to hear that my son is type one, I am okay with giving you all the food if you could give me all the firewood. I have hypothyroidism and it makes me get cold.'
[A]: Yes


[Q]: Context: 'Oh ok, that will be great. How about the water? Is 2 for me and 1 for you ok?' 'How about 2 for me 🙂' 'I have 3 kids with me who are always thirsty but we can negotiate for it'
Utterance: 'Ok. Thats fine'
[A]:
No