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 need the food and water.  You can have all the firewood.' 'hello how are you?  I need the food the most because I ran off and left mine sitting on my kitchen counter.  I think we can agree upon you having 2 water but I need 2 food' 'I'm going hiking, and I really need food, it works up an appetite.'
Utterance: 'Well I didn''t bring any with me so I really need two.  I am willing to give you 2 waters.🙂'

Output: Yes


Input: Consider Input: Context: 'Gosh, that's a bg favor because I need the firewood. I will give you all of the firewood if you will give me all of the food. How's that?' 'Fair enough! Thank you! I would really appreciate any extra water that you have too?' 'I need some water...I'll give you two of mine so that I can hang on to one.Is that okay with you?'
Utterance: 'Yes, that works! Thank you! Where are you heading out to camp?'

Output: No


Input: Consider Input: Context: 'Looking forward to this camping trip!  I am hoping we can find something amicable with these additional resources.' 'I'm excited too 🙂. Things have been stressful lately. What are some things that you value most?'
Utterance: 'It's supposed to be chilly where we are heading and I could really use some extra firewood.  🙂  What about you?'


Output: Yes