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: 'Would you be willing to take more firewood for less food?' 'Yes I think that sounds fair.' 'So if I take 2 foods and 1 firewood, you take 1 food and 2 firewood. What would be fair for water?'
Utterance: 'What if I take two waters and you take one water then?'

Output: No


Input: Consider Input: Context: 'Yeah.  I like to go for long hikes so for that I need water and food.  ' 'i have plenty of water, if you have firewood and some food' 'I have plenty of firewood.  I need two pieces of food though for my hiking.  '
Utterance: 'one piece wouldn't be enough? i will give all the water'

Output: Yes


Input: Consider Input: Context: 'How about this it think it will work out better for us and you snice you need fire wood too. You get 3 food and 2 firewood and and I get 3 water and 1 firewood. 🙂🙂' 'I really don't want to be without water, how about 2 water and 2 firewood for the 3 packages of food?' 'I just want to make sure I understand you I get 2 waters and 2 firewood and 0 food. '
Utterance: 'That's right. Since you would be getting food from your sister, while I am camping alone, you would be getting more food pretty soon. '


Output: Yes


