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.

Context: 'Hello there.' 'hi'
Utterance: 'So I plan to go hiking a lot this trip and I would appreciate a majority of the water and firewood if possible.'
Yes

Context: 
Utterance: 'Hello, I am very cold and need food and wood to remain warm. How about I get 3 firewood, 3 food and 1 water?'
Yes

Context: 'if i accept the deal, how much will i get ?' 'You get 1 water 2 firewood and 2 food packages.' 'i propose, 2 water, 1 food and 2 firewood to you, is that good ?'
Utterance: 'Sorry I can't do that 1 water is not enough for me. '

Yes

