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: 'i need two food items and one water' 'I will take 2 waters, however I would like 2 food and you can have 1 food and 3 firewoods' 'one food is not enough i am pregnant and i need to eat many meals'
Utterance: 'My friend is ill and needs to eat to survive. How about I take 3 water then and you can have 2 food and all of the wood?'
[A]: Yes


[Q]: Context: 'okk i will give please explain how many pack you need ' 'that's so kind of you! could I please have 3? which item do you really need, I can give you 3 of it' 'okk i want 3 pack of firewood , 1 pack of food and 1 pack of water'
Utterance: 'could i have 1 firewood, if you'd like 1 pack food?'
[A]: No


[Q]: Context: 'Hi. I'd like to have all the food packages for my children and two of firewood. Will you accept it🙂🙂🙂' 'I apologize but that will not work. I have a diabetic and need to make sure they will have enough food for a hike. So I would like to take two food packages, one water, and two firewood. ' 'That won't work. Because, we are planning for a campfire. And so, we are in need of fire wood. I hope you understand.🙂🙂🙂'
Utterance: 'I understand. We are also planning a campfire, and have a lot of young kids who will need the fire to stay warm. So that's why I feel I need two firewoods. 🙂'
[A]:
Yes