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.
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Question: Context: 'I need more food since I have a huge family. Can you give me all food i give you all water?'
Utterance: 'i need a little more food because i forgot that we where staying longer and i forgot some of my food. Can i give you 1 food package please? '

Answer: Yes


Question: Context: 'Hello I would like to have two bottles of water and in trade will take 1 food and firewood for a higher amount of water.' 'Hello. I would consider giving you 2 waters for 3 firewood and 2 food. I have a large family so the additional firewood will help with warmth and cooking food. 🙂' 'That sounds like you could  really use the extra warmth for your family'
Utterance: 'Yes it is very much needed. My family doesn't have a lot of extra bedding so having the warmth of a fire will help make sure we don't get cold at night 🙂'

Answer: Yes


Question: Context: 'Hey, would you like to take more firewood in exchange I'll get more food? Just in case I get lost and would need to ration out my portions. '
Utterance: 'I understand where you're coming from. I would really need the most water. '

Answer:
Yes