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 am hoping that I can get a little extra food though....I'm taking these new meds and they seem to make me hungry all the time. I was hoping to get another 2 pieces of food from the supplies.' 'okk i will give 2 pack firewood and 1 pack of food, 1 pack of water ' 'I wouldn't mind another firewood, if it isn't a bother...I tend to get really chilly when it's nightfall.'
Utterance: 'ok what to you need explain'
[A]: No


[Q]: Context: 'I will be camping for 3 day so I gotta have some food.  Although, I do understand your situation.' 'I see. Yeah, if any of us knew how to fish or forage, we wouldn't need as much, but we're all from the city, so our survival skills are pretty bad and we're going to be camping for almost a week. But I get that fish aren't super reliable for food either... ☹️' 'I understand.  So we have came to an agreement that I get 2 water, 1 firewood, and 1 food, is that right?'
Utterance: 'Yeah, that sounds good to me. Thanks for being understanding. I hope your camping trip goes well.'
[A]: No


[Q]: Context: 'I don't want to be too hungry either but I think perhaps I might need an extra water to compensate for the lack of food.' 'Since I am giving you all of the firewood that you said was most important to you, I feel I should get at least the same amount of items as you, especially since you are getting exactly the firewood you want. I will need to stick to three waters and two food.' 'The firewood is most important to me to be sure. However, if you get more food and all of the water I could end up going hungry.☹️'
Utterance: 'Well I would be happy to exchange you one of your firewood for the one water you need. That way you won't go thirsty.'
[A]:
No