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.

Context: 'The weather is going to be really hot. Could I have 2 water in exchange for you receiving 2 food and 2 firewood?'
Utterance: 'I have a low immune system and need to stay warm how about I get all 3 firewood in exchange for the 2 water. '
No

Context: 'okay. 3 pack of water 2 pack of water and 1 pack of fire wood for mine. deal??' 'wait man i need 1 fire wood i give 1 water to you i must need 1 fire wood' 'Are you mad. what can i do with out water..'
Utterance: 'You have some this is extra'
Yes

Context: 'Hello there! It's nice to meet you. Truthfully, I need to get some food and some firewood. What do you need?' 'The main thing I like to do when camping is a lot of hiking (pretty much all day), so I was hoping to get as much food as possible so I can remain active.' 'I'm sure we can come up with a compromise! I understand the need for extra food with exercise. Sometimes I get low blood sugar and need an extra snack. I'll give you 2 food if I can get 1.'
Utterance: 'I think that is a totally fair split for the food. And I actually don't need a lot of firewood. I would be willing to give you all of it in exchange for the water.'

No

