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: 'Nice. Same, it's over 100 degrees where I live. 🙂' 'Yikes! It's a bit colder up here, that's why I would like to bring some extra firewood to stay warm at night.' 'Oh, I see what you did there. No problem I have plenty of firewood for you buddy. 🙂'
Utterance: 'Great! What extra supplies would you like to bring?'

Answer: No


Question: Context: 'I would give you all of the additional food if you gave me all of the additional water. ' 'That sounds like a deal' 'Shall we divide the firewood two to one? '
Utterance: 'sure as long as I am getting two wood.   It gets very cold at night where I go camping'

Answer: Yes


Question: Context: 'Hmm, I think I would prefer your original offer instead.  You can have all the food if I can have all the rest.' 'Hmmm i don't beleive i ever offered you everything for all the food. I will need at least one water. lets not be selfish.' 'Oh you are right sorry, I was mistaken.  Okay then, how about I get 1 food, 2 waters, and 3 firewood.  You can have 2 food and 1 water?'
Utterance: 'Well that would give you 6 rations and me 3. Again that is not very fair. If you want 1 food and all the fire wood that i need at least 2 waters. so again, 1 food, 1 water 3 wood for you'

Answer:
No