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 self-need strategy, otherwise output No. self-need is a selfish negotiation strategy. It is used to create a personal need for an item in the negotiation, such as by pointing out that the participant sweats a lot to show preference towards water packages.

Ex Input:
Context: 'Hello!🙂'
Utterance: 'Hello, how are you?'

Ex Output:
No


Ex Input:
Context: 'Hello. I really just need firewood for my wife and daughter and some extra water for myself.'
Utterance: 'Hello, i also need firewood, i have a medical condition where it is very hard to maintain my body temperature. '

Ex Output:
Yes


Ex Input:
Context: 'Hm. Getting warmer. What do you need the most of? ' 'I need more water than the other options, you can keep 2 food and 2 firewood but 1 water' 'I also feel that water is the most important. How about I take all 3 water, and you can take 2 firewood, and 2 foods?'
Utterance: 'I think the fairest thing would be that you keep 1 water, 2 food, 2 firewood'

Ex Output:

No