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.
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Question: Context: 'I prefer to have the most water as I have a medical condition that requires me to stay extremely hydrated at all times. If I get too dehydrated, it's extremely bad for me. How about I get 3 water and 1 food, and 2 firewood?' 'I'll give you the 3 water, 1 firewood. How about I get 3 food and 2 firewood? I'll need the fire to cook my food.' 'I would need firewood to cook my food as well. I would like the 3 water, 1 food, and 1 firewood, what about that? '
Utterance: 'Since the value of water exceeds both food & firewood, I think it's fair for me to receive the extra dose of firewood. My offer to you is: you get 3 water, 1 food,  0 firewood.  I would get 0 water, 2 food, 3 firewood.'

Answer: Yes


Question: Context: 'Same here haha. Is water your lowest priority item too?' 'Yes. We think we have enough water for now.' 'Same here! I am in need of food more than firewood however as I am very hungry. '
Utterance: 'Me too. We have a bigger family and we will run out of food if we don't get some more.'

Answer: Yes


Question: Context: 'Hello!🙂'
Utterance: 'Hello, how are you?'

Answer:
No