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.

Input: Consider Input: Context: 'hello, how are the preparations coming along?' 'Hi There, I'm doing okay with my preparations but I am worried that I don't have enough food or water for the next few days.' 'I also worried about those two items, especially water.'
Utterance: 'Yes, they say it supposed to be really hot the next few days.'

Output: Yes


Input: Consider Input: 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.'

Output: Yes


Input: Consider Input: Context: 'What is it that you really need on this camping trip?'
Utterance: 'I really need some more food. I only have the basics, and I'm afraid it's not going to be enough. What about yourself?'


Output: Yes