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: 'Are you most interested in the food? 😮' 'yeah I didn't pack enough for my trip, so I'm a little worried about my supplies.' 'I see. I wouldn't want you to go hungry. ☹️'
Utterance: 'thank you for that.'
No

Context: 'We can do the 3 for 3 trade.  That works perfectly!  Its' going to be cold at night where I'm going.  What's it like where you're heading?' 'It's going to be pretty warm where I'm going, but it's also variable. How do you feel about you get 2 wood and I get 1?' 'That's mighty kind of you.  We have a deal!  I'll take the 2 wood and you get 1.  Thank you.  You'll also get the 3 packages of food and I'll get the 3 waters.  Deal ?'
Utterance: 'Deal!'
No

Context: 'I'm sorry about that, accidentally hit that send button lol! I was thinking about it as well. I'm pretty excited. How about you?' 'I was just thinking about the logistics and how to prioritize the various items.' 'Same here. I'll go ahead and list some of what I need and you let me know if you will need the same as well. I need some extra water for our camping trip as well as some additional food. '
Utterance: 'That sounds reasonable. I don't particularly need the food because I see that as more of a luxury but I could really use some more water. It's supposed to get really really hot on the weekend. 😮'

Yes