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 uv-part strategy, otherwise output No. uv-part is a selfish negotiation strategy. It is used to undermine the requirements of the opponent. For instance, suggesting that the opponent would not need more firewood since they already have the basic supplies or a suggestion that there might be a store near the campsite where the opponent can get the supplies instead.

Input: Consider Input: Context: 
Utterance: 'Hello there 🙂'

Output: No


Input: Consider Input: Context: 'Oh yes, sorry I am so caught up with my wound I completely forgot about that. I can spare 1 firewood so you would get 2, do you think you could spare another water in exchange for the wood?' 'i cant unfortunately i really need the two water im sorry. ' 'im so sorrry unfortunately i am in dire need of two wood we are in a very cold climate'
Utterance: 'how about i get 1 water, 2 food, and 2 firewood since I'll be here so long? because of my leg i likely won't be able to leave anytime soon'

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