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.

[EX Q]: Context: 'You drive a hard bargain. I could really use that firewood. It's going to get cold tonight and these sleeping bags are not worth the price I paid ;)' 'Haha, I know but I am in the same situation! ☹️ and since I am getting less food I feel like it is fair I get on more firewood since I truly need that 🙂' 'Some extra water for coffee might keep us warm, would you consider taking 1 food, 2 wood, 1 water?'
Utterance: 'Sure I can do that 🙂'
[EX A]: No

[EX Q]: Context: 'That makes sense. I'm also interested in firewood, but have a great need for water due to the current weather. ' 'That makes sense. How about we start out with I get 3 firewood, and you get 3 waters?' 'Great idea, that works for me. 🙂'
Utterance: 'Okay, let's do that, and then split the food. Since there are only 3, do you want to flip a coin to see who gets 2 of those?'
[EX A]: No

[EX Q]: Context: 'Sorry but I really need all 3 food. All the food I brought with me has spoiled because the AC in my car broke. ☹️' 'I see - So are you saying I would take all 3 firewood and all 3 water and you just get food? ' 'No. That's not what I am saying. You can take all 3 firewood and I would like all 3 food.'
Utterance: 'aha, i basically just said that. I was asking about the water. I said I would get all 3 firewood and all 3 water and you would get all the food (3)'
[EX A]:
No