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.

Context: 'Hello' 'What kind of items do you need? I especially need water because I would like to do extra hiking and would need to hydrate. ' 'I need all three, but need food the most'
Utterance: 'I would give you all of the additional food if you gave me all of the additional water. '
No

Context: 'Hello' 'Hi there.. how are you doing today? I hope well! 🙂 So, it looks like we need to divy up these supplies, huh? Do you have any thoughts on the issue?'
Utterance: 'I'm doing fine thank you, how about you? Well for my trip I'm most interesting in socializing so a great campfire a night would be great, I'd prefer not to boil water either so want extra of that too. Food less so as I will go fishing and know wild vegetables, fruits and mushrooms I can pick. How about you?'
Yes

Context: 'So all that is left is water, i guess i should atleast drink alot of it if i wont eat much haha 🙂' 'For sure, and you will need some way to put out the fire. 😮' 'Haha good point, you worked with me on the firewood so i am ok with you getting two waters and i will get one, deal?'
Utterance: 'I think that is generous of you. Thank you and I agree.'
No