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: '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'
[A]: No


[Q]: Context: 'That would work for me if I get all 3 water still' 'How about you get 2 of the waters an i would take 1 of them? I need some water to stay hydrated ' 'If you get two foods then I need more items overall'
Utterance: 'you will have more because you will be getting 2 firewood and i will get ! and you will get 2 waters and i get 1 and i will get 2 foods and you get one'
[A]: No


[Q]: Context: 'But these are only additional packages☹️' 'I get that and understand completely. I have a large number of mouths to feed making the food a necessity or all the firewood to cook whatever we hunt. How many you have?' 'I have three.'
Utterance: 'I have 8. That is 5 more people to feed for 3 meals per day....'
[A]:
Yes