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: 'hi there! 🙂' 'Hello.'
Utterance: 'I'm excited for camping! We have these extra items. What do you need most of?'
Example Output: No

Example Input: Context: 'I really need some food, but I could also use extra firewood. It is supposed to be pretty cold at night and we would love to cook up some smores.' 'I hear you we have the same issues well you can have either 2 food or 2 firewood what would you prefer?' 'I would prefer 2 food. I could give you 1 food, 2 firewood and 2 water?'
Utterance: 'that sounds like a good deal to me, '
Example Output: No

Example Input: Context: 'I also need water with my medical condition I have to take lots of meds. I can give you extra firewood so you can boil more water easily.' 'Dang. I'm sorry for your condition. I really don't need the firewood though as I cut so much this year.. How can we negotiate? I'd hate for something to happen to you.' 'We can try to figure out a way to split the water and food in the fairest way 🙂. Firewood isn't an issue so it doesn't matter as much. I think to start something like splitting the food 2/1 and the water 1/2?'
Utterance: 'That might work. I can always boil it and I could use the extra food for the kids.'
Example Output:
Yes