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.

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'

A: Yes
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Q: Context: 'Well, I would rather not. I might starve if I don't have all 3 packages of food ☹️' 'how much firewood do you need' 'I would like 2'
Utterance: 'I will  be happy to let you have 3 packs of food , but I need 2 packs of firewood'

A: No
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Q: Context: 'I am really bad at cooking so will probably need an extra good just because I'll ruin one of the 3.  Plus Im bringing 2 dogs they can eat the bad food I make 😮  I dont plan on hiking much so how bought I keep all 3 foods, and you keep all 3 waters and we can split the firewood.  2 for me, 1 for you. Great deal!' 'i too i am bad at cooking and i will spend a longer time in the woods so i will need atleast 2 foods, 2 firewood and 1 water' 'But I have more mouths to feed here so I will give you one of the foods, but then need 2 firewood and then take back 1 of the waters.  '
Utterance: 'your dogs could probably hunt for something for you guys. and i would be in the would for a very long time '

A:
Yes
****