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: 'hi 🙂' 'I was thinking that you could give me 3 food packages and i will give you 3 water? What do you think?'
Utterance: 'If I do that I would also like all three firewood'

Ex Output:
No


Ex Input:
Context: 
Utterance: 'Hello there, I'm in a lot of need for some firewood! I'd not be against taking most of it if that's alright?'

Ex Output:
Yes


Ex Input:
Context: 'well how about i get 2 water, 2 food and 1 firewood' 'Here is the offer.  For you: 3 water 0 food 1 firewood' 'what about instead of firewood, I get 1 food, so it will be 3 water, 1 food and 0 firewood'
Utterance: 'Ok so 3 water 0 firewood and 1 food, I can work with that'

Ex Output:

No