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: 'I enjoy camping as well. However, my campsite seems to be a bit chilly at night. I'd be willing to part with some firewood, yet I'd need quite a bit of food to compensate. I also have a stream nearby so water is plentiful if you need that as well.' 'I may be able to do something with regards to food. Do you have enough water?' 'I have more water than I need. How is your water supply?'
Utterance: 'I could use some more water as I get dehydrated easily. Since you have enough, I could give you and extra package of food for your water.'

Output: Yes


Input: Consider Input: Context: 'No. I won't part with any firewood because I can't stand being cold, and you can have 2 foods if you have a larger group if you give me 1 water. 🙂🙂' 'Sorry, that's not going to work for me.  ☹️ You have a water purifier? Doesn't sound like extra water is necessary.  I am in a hot, dry climate.  I can give up all the firewood to you, if you can leave me the three packages of food.  I would also like 2 waters.  ' 'Sorry but I'm willing to give up all the water for 1 food at least. I already mentioned above that I don't plan on hunting or fishing and I plan on being out for a while. That's my final offer.'
Utterance: 'Okay, I will leave you all the firewood and 1 food, and I will take two food and three water packages. I am willing to finalize that.☹️'

Output: No


Input: Consider Input: Context: 'Awesome, I appreciate that. How does the water need look on your side?' 'I think having two waters would be good for me because my mom forget to pick extras up at the store yesterday😮' 'Oh no! Moms can always be so forgetful. I do notice that leaves you with 6 items and me with 3 though. I think it might be better if I take the 2 waters to make it more equal.'
Utterance: 'Hm, I didn't think about that. Good point.'


Output: No


