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 need an extra supply of food, as I exercise a lot! 🙂' 'Hmmm.  And the firewood?' 'I get cold easily. I need the firewood to get warm. I might catch a cold.🙂'
Utterance: 'I think water should be your priority.  You have food and firewood also in your basics.  I will let you have the 3 water but I will need the 3 Firewood and the 3 Food.  I have a medical condition.'

A: Yes
****
Q: Context: 'Hello. 🙂 What item did you need a little extra of?' 'Thank you for asking, I would really like some extra fire wood as I usually get cold and scared at night so I can keep a fire going.' 'I'd be willing to give you all my firewood if you could give me all the water.'
Utterance: 'I do need at least one extra water bottle in case the fire goes out of control, but I am willing to forgo any food as I can forage for food.'

A: No
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Q: Context: 'Didn't you bring any firewood at all with you?' 'Yes, but the firewood I have will be used to keep us warm tonight.  Like you mentioned before it will be a bit chilly tonight.' 'Ahh, I forgot about that. OK. I'll take 2 packages of firewood, give you 2 waters, and 1 food packages as you do have some fish to cook and I don't. Do we have a deal?'
Utterance: 'OK, we have a deal.🙂'

A:
No
****