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: 'Firewood is not overly interesting to me, but water is somewhat enticing.' 'Ok, great - I can give you all of my waters in exchange for a majority of the food and half of firewood' 'Half of firewood? There are 3 so one of us has to get more. I would need more of that. '
Utterance: 'Yep, I know there's three and no way to split evenly lol - can you give me a justifiable reason as to why you deserve more over me? Please convince me.'

Answer: No


Question: Context: 'Thanks. Yea they do  love their snacks LOL. Yea I just need 1 extra food. Snice I wasn't planning on her friend coming. ' 'Okay, then the deal you mentioned earlier sounds good to me. You're okay with me getting 3 water 2 food and you getting 3 firewood and 1 food?' '🙂 Yep sounds like it will help us out the best snice you need water and food for your hike and I need firewood and just 1 food here at the camp.'
Utterance: 'Okay, then that sounds like a good deal for us both! It was a pleasure doing business with you, thanks!🙂'

Answer: No


Question: Context: 'Actually, I've just thought about it and I'd also like one package of water. I think it'd be fair being that you're getting 2 packages of food.' 'Which means? Did you mean that I would take 2 packages of food and 2 packages of water? Then I will ask for one package of fire wood.' 'Being that you're getting 2 of 3 of the item (food) that for me is the highest value, I think it's only fair that I get all 3 of the medium value items (firewood) and one of the low value item (water). That would give me 5 packages and you 4 packages, but 2 of 4 of your packages are the high value items.'
Utterance: 'Okay then. I agree with you.. Shall we finalize our deal. I will take the 2 packages of food and 2 packages of water.r.🙂'

Answer:
No