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: 'me and my gals thing that firewood is important also but we actually want water' 'We can figure something out. Would you rather have 3 water and 0 firewood or 2 water and 1 firewood?' 'can i have 2 foods too'
Utterance: 'If I can have all the firewood...'
[EX A]: No

[EX Q]: Context: 'Too true! Anyways, what is the item that you prefer the most for this camping adventure? 🙂' 'Firewood, how about you?' 'Oh, firewood as well! It's not a camping trip if you run out of firewood in just a few nights! I would hate to be cold '
Utterance: 'I was thinking S’mores!  I will start off....2 firewood, 2 water, 1 food'
[EX A]: Yes

[EX Q]: Context: 'I would need firewood to cook my food as well. I would like the 3 water, 1 food, and 1 firewood, what about that? ' 'Since the value of water exceeds both food & firewood, I think it's fair for me to receive the extra dose of firewood. My offer to you is: you get 3 water, 1 food,  0 firewood.  I would get 0 water, 2 food, 3 firewood.' 'Okay you have a deal.'
Utterance: 'Great. I'll send it over '
[EX A]:
No