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: 'I was just negotiating the water for now.  I was trying to do one at a time.' 'ah, I'm definitely ok with doing one at a time: A 2:1 split is definitely OK with me: The issue is, if we consider each individually, it might be harder to come to a deal, but I'm happy to do it your way.' 'How about you take 1 firewood, I''l take 2 and with food, you can have 2 and I'll take one package.  I have two very hungry boys!'
Utterance: 'Is there a reason you want the 2:1 split? Food my group's largest priority by a large margin (We eat a lot). It's worth a lot more to my group then the firewood would be.'
[EX A]: Yes

[EX Q]: Context: 'yes we should come to a fair deal, what are your priority items?' 'Food is highest, firewood is medium, and water lowest. You?' 'I have food, water and firewood.'
Utterance: 'Ok so whoever gets more wood should get something else higher'
[EX A]: No

[EX Q]: Context: 'I need all the food packing and some basic needs for the camping, may I know about your first though on which you need additional package?' 'I will need food packaging as well, so unfortunately I cannot agree on you taking it all. I will need 2 of the food packages, 1 of the firewood, and 2 of the water as I want to ensure to feed/hydrate my family of 5.. Does this work for you?' 'I can't agree to this, as I have to feed my family with 7, so I would be needing 3 food packages and 2 water and 2 firewood. will this be agreed by you?'
Utterance: 'No, that will not work. That does not leave me with hardly anything to feed my family of 5 😮. I will not agree to you taking 3 food packages. I can agree to me taking 2 packages of food, 2 of firewood, and 1 of water.'
[EX A]:
Yes