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: 'I am sooooo excited too! I can't wait to sit by the fire! 🙂' 'Me too!!!! That is what I am most excited about. I was actually hoping you might have some firewood to spare?' 'Gosh, that's a bg favor because I need the firewood. I will give you all of the firewood if you will give me all of the food. How's that?'
Utterance: 'Fair enough! Thank you! I would really appreciate any extra water that you have too?'

Ex Output:
No


Ex Input:
Context: 'It's been so cold these last few days, I'm worried that I didn't bring enough wood for the next few nights.' 'That is unfortunate. How about I give you are my firewood for all your food?'
Utterance: 'That is a very generous offer but I think I need to keep some food to be safe. Do you need any water?'

Ex Output:
No


Ex Input:
Context: 'We're nearly there and just realized that we must have missed picking up some of our stuff before leaving.' 'Were we supposed to bring things?  Oh, no!  I'm gonna die...' 'Of course, it's always wise to bring things. We absolutely need water and some food. Water is critical though.'
Utterance: 'You got that right!  I just came from a three-day rugby tournament and I am totally dehydrated.  I hope they have enough at the site.  I also get the chills bigtime when I am dehydrated. That's how I know I am very dehydrated...'

Ex Output:

Yes