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: 'Hi! I was hoping to get 2 packages of firewood, 2 packages of water and 1 package of food and you can have the rest.' 'Hello. Is there a reason you prefer more water and firewood to food?'
Utterance: 'I get cold very easily and also get thirsty a lot. What are your preferences?'
[A]: Yes


[Q]: Context: 
Utterance: 'Can you spare some water? I need to take medication and I have run out.'
[A]: Yes


[Q]: Context: 'I was more thinking 2 Firewood for me , 1 food and 1 water? The rest would be yours.' 'That is a promising bargain but I want at least 2 firewood, it makes for a fun time for my group.' 'Interesting , because my group feels the same way though. How does your group feel about water though?'
Utterance: 'Water is not that important for us but the firewood is a deal breaker for us ☹️'
[A]:
Yes