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.

[Q]: Context: 'Hello, what do you expect from me?' 'Hi! I'm really excited for the camping trip, but I guess can we talk about it first? I don't think we're supposed to rush into a decision.'
Utterance: 'Okay, What did you thing about the camping trip?'
[A]: No


[Q]: Context: 'ohh that's would be really difficult.However we can still sort things out' 'That is great to hear!🙂 How about you take 2 food, 2 water and 0 firewood? What do you think?' 'uhm.how about i have 3 water 2 foods and zero firewood?'
Utterance: 'Are you willing to budge on one water for me? I have 5 people in my group and they really could use one package of water. It is hot out nowadays. '
[A]: No


[Q]: Context: 
Utterance: 'Hi! I like to hike so I really need more water. Could I take 2 packages of water and 1 of food and 2 of firewood?'
[A]:
Yes