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: 'okay friend you can have 3 firewood and 3 water is that good enough?' 'I am going to need some food of course. ' 'yes ofcourse i agree with you.my dear friend will you have 1 food 3 firewood and 3 water'
Utterance: 'I would prefer 2 food and less firewood. There is tons of firewood where I am but there is no lake so I can't fish. No berries around here either. It's pretty scarce'
[EX A]: Yes

[EX Q]: Context: 'What kind of items do you need?  I especially need water because I would like to do extra hiking and would need to hydrate.  ' 'I need all three, but need food the most' 'I would give you all of the additional food if you gave me all of the additional water. '
Utterance: 'That sounds like a deal'
[EX A]: No

[EX Q]: Context: 'All of the additional water and food? That doesn't seem very fair. ☹️' 'Well I'll be splitting it with everyone on the trip as we go up. The people that choose to stay will still get all their basic supplies of food and water. The backpacking trip is going to take three days though, we're gonna need the resources😮' 'I see. Which resource do you desire most?'
Utterance: 'Well I was thinking you could get all the extra firewood and work on the group meal and bonfire for friday night'
[EX A]:
No