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: 'I don't have any problems letting you have all 3 waters. Would you be willing to give me all 3 firewood? I need extra to keep me warm as I get cold easily.' 'That's a little tough for me but if we can come to an agreement where I get 2 of the food, I'd be willing to play ball.  We both deserve a good camping trip, after all.' 'That's true. We both deserve a good trip. Why do you need more food?'
Utterance: 'Because I planned to go hiking and it wouldn't leave me time to chop much of any myself.  Even if I did, I'd have to carry it back and that's obviously not very smart in this heat.  But if I had the extra food, I'd be willing to inconvenience myself with getting firewood and cutting my hike a little short because I know the firewood is important to you.'

A: Yes
****
Q: Context: 'you pointed out that we will need more!  😮 i will take 2 waters' 'I didn't know you had supplied everyone with water before the trip. I was merely trying to look out for your needs, but you said you didn't need them!' 'I am giving you a lot of food. You are being unreasonable and backtracking. You are getting some of everything with my offers, and there are only two of you.'
Utterance: 'You said you only needed one food package and two bundles of firewood for your group together tonight and had plenty of everything else. You're the one insisting you need more now. This is my son's first camping trip and we're bound to lose supplies and waste them. Your group is trained and prepared.'

A: Yes
****
Q: Context: 'Hello, how are you today?'
Utterance: 'hello, I am good, I am very excited about this trip. how are you?'

A:
No
****