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: 
Utterance: 'Hello!  I'm going to be heading out on a big camping trip and will need to take some extra supplies.  Are you going camping as well?'

A: No
****
Q: Context: 'How are you enjoying the camping trip so far?' 'Hi. It’s great, but very cold here. How about you? '
Utterance: 'Yes the cold is hard to adjust to I can't seem to shake the chill.'

A: No
****
Q: Context: '☹️Oh, that sounds awful. Are you sure you need all three packages of firewood?' 'I might be able to get by with just two... I'm on a diet though, so I don't need as much food.' 'That's a relief. I actually have a friend joining me and they don't have their own food supply. I don't have enough for two people.'
Utterance: 'You can all the food if you need it.🙂'

A:
No
****