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 hope we can come to a compromise 🙂, what is another priority of yours besides the wood?' 'Food is a second priority for me, as I will be metal-detecting as well, & cannot risk fainting from the heat. How about I give you two firewood (I don't think we can "share", haha), you can give me two food packages, and two water packages.' 'okay, I am willing to give up more food to get the firewood, I like your offer🙂'
Utterance: 'I do as well. I'm glad we could come to an agreement! 🙂'

Output: No


Input: Consider Input: Context: 
Utterance: 'Hello, I am very cold and need food and wood to remain warm. How about I get 3 firewood, 3 food and 1 water?'

Output: Yes


Input: Consider Input: Context: 'Me too! im bringing my 5 month old baby with me and im worried im not gonna be able to find purified water for his formula!' 'Ah, Baby's first camping trip. 🙂 But that is a bit of a big worry. ' 'Yea so I was hoping i could get 3 of the waters if possible and 1 firewood and you can have the rest!'
Utterance: 'I really wish I could take you up on that offer but I could really use some of that water as well. Perhaps, I can get one water while I'll give you some extra food.'


Output: Yes