TASK DEFINITION: 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.
PROBLEM: Context: 'So why did you decide to come camping?🙂' 'I think it will be fun. I was wondering what your preferences are for the extra items we can bring?' 'I was hoping for food as I forgot a bag at of stuff at home. I also was hoping to star gaze but I may not have enough wood to keep warm.'
Utterance: 'I understand. I too would really like some food because I would get pretty hungry without it and I also forgot to bring some. Firewood is so important for keeping warm. There are three of each item. Maybe we can negotiate on how to split the resources'

SOLUTION: Yes

PROBLEM: Context: 'Hello! I would like more packages of food the most. What are you looking for?' 'I would need water the most as I forgot to bring enough. I can give you all my food for all of you water, if you'd like?' 'That would be amazing! So I could take all 3 packages of the food and you could have all 3 packages of the water. Now, we just need to split the firewood. Could I take 2 of the firewood leaving you with 1? I think I would need more for cooking the food. '
Utterance: 'Awesome! That does sound like a deal. I wish we had more firewood to split because I am afraid it might get cold.'

SOLUTION: Yes

PROBLEM: Context: 'Okay, can I ask why the firewood is important for you? 🙂' 'You can find more wood in the forest but I'm going somewhere where there's not a loot of trees ☹️' 'That makes sense. What if you took 2 firewood in exchange for 1 additional food?'
Utterance: 'you can have 3 food'

SOLUTION:
No

