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: 'Okay I understand that! Is there a particular reason that you do not need much water?' 'I figure I could always get some at the stream 🙂' 'Yes, I agree, but are you aware of the water quality at your campsite? '
Utterance: 'Not completely aware but I do have a filter that I brought from home. What are your needs?'

Ex Output:
No

Ex Input:
Context: 'no its not i give you i water i get 1 food and 1 firewood' 'We only have 3 of each to divide up.. so yes, you're going to have to give me one more on an item.. but in exchange I'm giving you 1 more on two different items. I'm getting 4 items in total, you're getting 5.. - You're essentially netting 11% more 'items' than I am in this deal. ' 'thats the point as you need water so badly'
Utterance: 'Correct.. I do.. but if you're not willing to budge on this where you're still netting more overall value I understand - I'm bummed but I understand.'

Ex Output:
No

Ex Input:
Context: 'Well, I could see fit to give you the extra firewood (If I can hear a few of your songs!) if you don't mind letting me take the water.' 'Hahaha, once you hear my singing you might hope the opposite. I can do that with the firewood and water, but I really would prefer two of the remaining foods. ' 'I could also use the extra food, so can we resolve it amicably? Coin flip maybe?'
Utterance: 'That's a good idea. I'll trust you to do the coin flip. '

Ex Output:
No