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: 'Hi there, how are you doing?' 'I am great. Excited to go camping. How much food do you need?' 'I could use some extra food, I'll be hosting a get-together at my campsite later and will need some to entertain the guests. I'd like 2.'
Utterance: 'That is fine. I can go fishing to get some extra food but I would still like one. Can I take two packages of firewood so I can cook them? '
[EX A]: Yes

[EX Q]: Context: 'hmmmmm not possible. i need the same exact thing. what about i get 2 foods, 1 firewood and 2 water☹️' 'If you take 2 foods, 1 firewood, and 1 water that's a deal.  Otherwise I need the 2 foods, 1 firewood, and 2 water.  ' 'so let me get the remaining firewood then. making 2 foods, 2 firewood and 1 water🙂. or should i be going'
Utterance: 'You can have 2 firewood OR 2 food.  I prefer you take firewood as I need at least 2 food. Each of us gets 2 of something. '
[EX A]: No

[EX Q]: Context: 'Hello I'm interested in obtaining more of the water and food, but don't need any extra firewood🙂' 'Well I am really in the same position as you are. Suppose I take 2 waters and only 1 food? '
Utterance: 'I get really sweaty when I hike, so I really need to get at least 2 of the waters.'
[EX A]:
Yes

