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: 'Hi, What is decision about packages?'
Utterance: 'I was thinking I will take 2 food, 1 water, 2 firewood'
[A]: No


[Q]: Context: 'I can give you 2 units of firewood, but I need at least 1 as well. ' 'How much food do you need?' 'If you give me 1 unit each of water and firewood, I'll give you 2 units of food for helping me out'
Utterance: 'I may need two food, I don't know how much fish I can catch.'
[A]: Yes


[Q]: Context: 'I am actually planning to make a big dinner for the whole camp tonight. I will feed everyone if you can let me have the water and firewood. You can take the food to eat before dinner.' 'O cool🙂. I can give you all the water and we can split the fire wood. I need a least one firewood to make a fire for my son' 'I can give you one firewood if you can spare one food for me to eat while I am cooking.🙂'
Utterance: 'Ok if I can keep one water as well 🙂'
[A]:
No