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: 'Oh that is nice of you! I appreciate that very much! We do enjoy a good hike, so water will be good!' 'Sounds like we are set.' 'yeah, I hope you have a nice time camping! weather should be nice!'
Utterance: 'I hope it will be because I don't love camping! Hope you have fun too!'
[EX A]: No

[EX Q]: Context: 'I will provide you the food, but I am asking only one for my people.' 'I am giving you all the water,  how come you need the food? ' 'The main reason is to prevent us from cold.  Please provide three wood and three water.  If this is okay, then I will provide you three food.'
Utterance: 'Food doesn't prevent cold. Thank you for giving me all the food but I need 1 wood to cook the additional food. You still end up with more items in the  end  '
[EX A]: Yes

[EX Q]: Context: 'Hello.  I'm actually not doing too well.  There have been a few problems and I will need some of the extra packages.  I'll need two of the waters, 2 of the firewood and 2 of the food.' 'I'm sorry to hear that you are not doing well.  I've also have some issues.  On the way up to the camp site, all of my clean water spilled in the car.  I was really hoping to be able to get all of the available water.  Why aren't you well?  I hope it's not serious.  ☹️' 'Oh, that's terrible.  I'm sorry that happened.  I need the water for my child.  They seem dehydrated and disoriented.  My husband has also caught a cold and has been having chills.  I thought the extra firewood would help him feel better.'
Utterance: 'Oh my gosh.  You are not having an easy trip.  If your children are dehydrated and disoriented, perhaps you should get them to emergency care immediately.  I would like to provide you will all of the water in the meantime, but that would leave me with none at all.  I wouldn't have your husband out of the tent with chills.  Perhaps you should keep him bundled in your cabin.  I forgot my portable propane grill - so I would need some firewood.  How about I take 2 waters, 1 firewood and all of the food?'
[EX A]:
Yes