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: 'I could really use some extra firewood!' 'So could I. How about we split the firewood?' 'How about I take 2 firewood but you can have 2 waters? Water is pretty important and I have a little extra.'
Utterance: 'That sounds fair.'

Ex Output:
No


Ex Input:
Context: 'Nice, I am too. I'm actually looking to gather up some extra supplies, what about you?' 'I need extra supplies as well. I'll be camping at a higher elevation and need extra firewood for warmth, extra food and some water. What do you need?' 'I was really looking for extra food, firewood is important to me but I could spare some in exchange. I normally eat more than the average person so I'm worried my food supplies as is will make it hard to get through the trip.'
Utterance: 'I would like a little extra food for myself as well. Would you be willing to split the food 1 for me and 2 for you? '

Ex Output:
No


Ex Input:
Context: 'Hey! I'd like some more firewood to keep my doggo warm. What do you need?' 'I need firewood as well. We have a large group consisting of mostly senior citizens, including my grandma, so we'd like the firewood to keep everyone warm.' 'I see. 😮 What are you least interested in?'
Utterance: 'We can make do without extra water. Can we trade two waters for an extra firewood package and an extra food package?'

Ex Output:

No