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: 'i suggest we put excess in charge of working on proposition because prevention of excess is not a good first step.' 'I don't know what you mean by "prevention of excess." Can you clarify?'
Utterance: 'what i mean by prevention of excess is that we should focus on getting excess and not to limit it regardless of what we already have because if we should offer some creative approaches by excess. we can both come to an agreement if you are interested.'

A: No
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Q: Context: 'I need 3 food packages as it is required to feed children who visited unexpectedly. Instead you can take water and firewood' 'No that doesn't work for me. I also have children with me. 4 children in total.  how about i take 2 food packages and 2 water packages and you take 1 food 1 water and 3 firewood packages.' 'I too have the same issue. I am also asking for children only , better you could accept 1 food , 2 water and 3 firewood, I hope this deal will work out for you'
Utterance: 'I need at least 2 food packages and at least 1 water. I can live with out any extra firewood.'

A: No
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Q: Context: 'Hello! how are you doing?' 'Hello, I would like to keep the 3 extra packages of firewood an 2 extra packages of water.  You can have all 3 packages of water and 1 package of food.'
Utterance: 'That's just too big of an ask. How about I get 3 firewood and 1 water and you can have the rest'

A:
No
****