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.

Example Input: Context: 'My kids are 14 and 12.  So they're fairly independent - but I also know that they want to do a lot of cooking during our camping trip.  Thus, I think that I'm going to need more firewood as I expect that we'll be having a lot of fires while we're out.  How about you?  What are you planning to do on your camping trip?' 'Good ages. They should be able to help out. We're planning to do a big bonfire, maybe some smores, and hopefully find a lake. We're looking for extra firewood and water for the bonfire and to keep hydrated' 'That sounds like a blast.   I would like to propose that you take 2 waters and 1 firewood and I'll take 2 firewoods and 1 water for our respective trips.  Does that work for you?'
Utterance: 'Yes, we are all looking forward to it. Thanks for being amenable and trying to make this work. That might be okay, but could we take take the 3 packages of food? Since we won't be doing as big of a bonfire, I am sure we'll hike more or swim and need the extra energy'
Example Output: Yes

Example Input: Context: 'What do you propose?' 'I really need food too, but I am willing to deal and let my kids go hungry I guess ☹️ I propose I get one food, 3 firewood and 1 water.  ' 'Will you please give me one firewood? I may run out of what i have. Just one.'
Utterance: 'I think I will need all the firewood since you are taking 2 foods. I will need to hunt and cook food from the land meaning I need my fire going all the time.'
Example Output: Yes

Example Input: Context: 'That fine then. If you want you can have most of the water and I can have most of the firewood. Sounds good?' 'That seems fine. How do you want to split the food? I grew up poor so I'm always afraid of starving 😮' 'Oh, yea I get that. I have a family so I need some food too. But just to clarify, are the original plan was to get 3 firewood for me and 3 waters for u right? '
Utterance: 'Yeah, that is fine with me.'
Example Output:
No