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: 'oh okay, you understand correctly, when you take the material from us' 'Okay, sounds good then.  I believe we have a deal then.' 'yes, we have a good deal. you want water from us'
Utterance: 'No, I want firewood and food.  No water.  I want 3 firewood and 2 food.'

Output: No


Input: Consider Input: Context: 'Hi there. How are you?'
Utterance: 'hi i am good how about yourself🙂'

Output: No


Input: Consider Input: Context: 'I would be OK with two packages of water.' 'Good. 2 packages of wood for me. 1 for you. 2 packages of water for you, and one for me. How should we divide the food?' 'I will take 2 packages of food and 1 for you.'
Utterance: '😮I thought you didn't need so much food, because of your diet....'


Output: Yes