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 Input:
Context: 'Hello' 'Hi there.. how are you doing today? I hope well! 🙂 So, it looks like we need to divy up these supplies, huh? Do you have any thoughts on the issue?'
Utterance: 'I'm doing fine thank you, how about you? Well for my trip I'm most interesting in socializing so a great campfire a night would be great, I'd prefer not to boil water either so want extra of that too. Food less so as I will go fishing and know wild vegetables, fruits and mushrooms I can pick. How about you?'

Ex Output:
Yes

Ex Input:
Context: 'I am a big guy, so I will need some more food, how about you give me an extra food while you hold on to two' 'I can't give you all the water if you take one of the food, I'm very sorry. I could take 2 of the food and 2 of the water if we do it that way. I really need cooking supplies if I want this trip to be productive for me - it's why I was coming.' 'That wouldn't work for me, I will be going hiking during camping, so I need all of the water I can get'
Utterance: 'Well then maybe we can just do a trade, the water to you and the food to me. And if I got two of the firewood, I'd have plenty of time to just boil and purify some riverwater instead'

Ex Output:
No

Ex Input:
Context: 'Of course. Since you're getting more water, I was hoping to get 2 firewood, and you could have the remaining 1. Would that work for you?' 'Water was my high priority and food was your's, so I think we already split the difference there. ' 'Okay, so how do you propose splitting the firewood?'
Utterance: 'Can we split a bundle, in the real world that would be cool. '

Ex Output:
No