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.

Ex Input:
Context: 'That would be amazing! So I could take all 3 packages of the food and you could have all 3 packages of the water. Now, we just need to split the firewood. Could I take 2 of the firewood leaving you with 1? I think I would need more for cooking the food. ' 'Awesome! That does sound like a deal. I wish we had more firewood to split because I am afraid it might get cold.' 'I agree. I am feeling generous and I did buy a new axe for this camping trip. So, I could stick to the prior agreement and just work a little harder to find some dry trees to chop.'
Utterance: 'I appreciate your generosity 🙂 I think that bringing your axe would be a great idea! Also be sure to pack warm clothes and extra blankets! I'm sure we will both be fine'

Ex Output:
No


Ex Input:
Context: 'I can't take cold and would badly need to have more firewood.' 'I need more firewood to keep my food going.' 'I get it, in that case I'' take additional packages of food.'
Utterance: 'I don't think so, because I need additional packages of food in case there is an emergency.'

Ex Output:
Yes


Ex Input:
Context: 'ok, so what at I get 2 firewood and you get 1 so you can cook your fish.' 'I'll really need 2 firewood if we do this.' 'I need the firewood also because this campsite is bare and the little bit of wood I did have a raccoon came and stole it.☹️'
Utterance: 'Okay, how about I get 1 food, three water, and 1 firewood?'

Ex Output:

No