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: 'Hi I would like to trade you food for some water 🙂' 'How many food would you like to trade for water?'
Utterance: 'How about 2 Water for 3 food?'

Ex Output:
No


Ex Input:
Context: 'i'll take 2, you can have 1? ' 'Firewood is my second priority. Can I have 2 of firewood?' 'okay🙂 is it cold so you want firewood?'
Utterance: 'Yes, I get cold easy. Thanks a lot!'

Ex Output:
Yes


Ex Input:
Context: 'Hello, How is your camping experience so far 🙂' 'It's going well.  🙂  How is yours?'
Utterance: 'It was going great until a bear came and took all of our food 😮'

Ex Output:

Yes