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: 'You are being very kind then, im elderly so trying to make fresh water by boiling it from getting it from a river was concerning to me. How about you take all three of the food for your kiddo's' 'That sounds fair. The kids can bathe in the stream. We are good with 2 food packs.' 'Lol, wish i could. Then you take all 3 of the firewood, I'll take 2 of the Water and 1 of the food, sound good?'
Utterance: 'Just to be clear, I get 3 firewoods, 1 water and 1 food. You get 0 firewood, 2 waters and 2 food packs?'

A: No
****
Q: Context: 'You drive a hard bargain. I could really use that firewood. It's going to get cold tonight and these sleeping bags are not worth the price I paid ;)' 'Haha, I know but I am in the same situation! ☹️ and since I am getting less food I feel like it is fair I get on more firewood since I truly need that 🙂' 'Some extra water for coffee might keep us warm, would you consider taking 1 food, 2 wood, 1 water?'
Utterance: 'Sure I can do that 🙂'

A: No
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Q: Context: 
Utterance: 'Hi!'

A:
No
****
