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: 
Utterance: 'Hi, How are you?'
[A]: No


[Q]: Context: 'no its not i give you i water i get 1 food and 1 firewood' 'We only have 3 of each to divide up.. so yes, you're going to have to give me one more on an item.. but in exchange I'm giving you 1 more on two different items.  I'm getting 4 items in total, you're getting 5.. - You're essentially netting 11% more 'items' than I am in this deal. ' 'thats the point as you need water so badly'
Utterance: 'Correct.. I do.. but if you're not willing to budge on this where you're still netting more overall value I understand - I'm bummed but I understand.'
[A]: No


[Q]: Context: 'Haha yup me too. I have a teenage son who eats about 5000 calories a day. Okay, I think the most fair option is one of takes 2 firewood and 1 of the other two items. I don't care who.' 'Sure. How about you take 2 firewood, and 1 food and 1 water?' 'That's fine with me. This should be a great weekend to get out.'
Utterance: 'yes sounds good! hope it doesn't rain'
[A]:
No