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: 'I will get two packages of food and you will receive one. I will get one jug of water and you will receive two. I will get one bundle of firewood and you will receive two.' 'Perfect. It has been a pleasure negotiating!' 'Yes, it has been a pleasure 🙂'
Utterance: '🙂 I hope you enjoy the rest of your day!'

A: No
****
Q: Context: 'What do you think if in the camp we get together and have a meeting between your family and mine? We can have a small party to get to know each other better.' 'Sounds great!' 'Ok, my proposal is to give you all the firewood you need, on the condition that you give me all the water I need. And regarding food we can negotiate.'
Utterance: 'That sounds good. What do you propose on the food?'

A:
No
****