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.

[EX Q]: Context: 'Hi there. Hope you too are looking forward to this much needed camping trip. What are your needs in terms of extra packages?' 'Since this is the first time for the family to be camping, having plenty of food for everyone is on the top of my list.' 'I am fine with you having the 3 foods. Is it okay if I have 3 water units We are fasting and need lots of hydration.'
Utterance: 'Are you sure you need all of the water? It would be nice to have some extra.'
[EX A]: Yes

[EX Q]: Context: 'That makes total sense.  I will let you keep all 3 of the water packages.  If I take the extra firewood for all 3 packages then I can probably boil a lot of the water to get the harmful bacteria out.  I really appreciate your generosity 🙂.  ' 'No problem.🙂  So I will keep the 3 packages of water and, since I am giving you all 3 packages of the firewood I will take back the 1 food package and keep all 3 of the food packages.' 'I would still like at least 1 package of the food please.  There has been a lot of rain in the area, but I think some poisonous mushrooms maybe prevalent in the area, so to be extra cautious I would like a little spare food on hand.'
Utterance: 'You don't have to eat the poison mushrooms. You can catch some fish from the river or hunt for small animals.  You have all of the firewood so cooking the food should not be a problem.'
[EX A]: Yes

[EX Q]: Context: 'I am traveling with a big group so we need more water.' 'lots of water only for when u have thirsty' 'That's true but we don't want to be dehydrated either since we have so many people haha. Here's my suggestion: 2 waters for me and 2 food items for you?'
Utterance: 'if u had hungry means what will u do. u need food. right. hehehe'
[EX A]:
Yes