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.

Example Input: Context: 'Hello. I really just need firewood for my wife and daughter and some extra water for myself.'
Utterance: 'Hello, i also need firewood, i have a medical condition where it is very hard to maintain my body temperature. '
Example Output: Yes

Example Input: Context: 
Utterance: 'HI. I'd love to get 2 additional packs of firewood. The weather forecast was for much warmer weather here and I just didn't bring enough with me. I also left my additional sweatshirt at home. I'd be happy to give you one additional water and two of food.  🙂🙂'
Example Output: Yes

Example Input: Context: 'Hi. It’s great, but very cold here. How about you? ' 'Yes the cold is hard to adjust to I can't seem to shake the chill.' 'I could really use some extra firewood!'
Utterance: 'So could I. How about we split the firewood?'
Example Output:
Yes

