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: 'Tell me about it!  With this pandemic it seems like all days are Mondays 🙂' 'Too true! Anyways, what is the item that you prefer the most for this camping adventure? 🙂' 'Firewood, how about you?'
Utterance: 'Oh, firewood as well! It's not a camping trip if you run out of firewood in just a few nights! I would hate to be cold '

Ex Output:
Yes


Ex Input:
Context: 'Very good. How about you?' 'I'm doing well. I'm looking forward to going on my camping trip but will need some additional items to make sure the trip is safe, healthy, and enjoyable. ' 'Same here. '
Utterance: 'I have diabetes, so it is very important to me that I get extra packages of water and food. When I'm at home, I always need to pack extra drinks and snacks for myself in case I go into shock and need to take medication. The trip could be very dangerous for me if I don't have access to these additional supplies. '

Ex Output:
Yes


Ex Input:
Context: 'Good ages. They should be able to help out. We're planning to do a big bonfire, maybe some smores, and hopefully find a lake. We're looking for extra firewood and water for the bonfire and to keep hydrated' 'That sounds like a blast.   I would like to propose that you take 2 waters and 1 firewood and I'll take 2 firewoods and 1 water for our respective trips.  Does that work for you?' 'Yes, we are all looking forward to it. Thanks for being amenable and trying to make this work. That might be okay, but could we take take the 3 packages of food? Since we won't be doing as big of a bonfire, I am sure we'll hike more or swim and need the extra energy'
Utterance: 'I was hoping to take at least some of the food with me.  As you know, those teenagers seem to hungry ALL the time.  It's like feeding fuel into a bottomless pit.  So I'm definitely going to need some of the food for my trip as well.'

Ex Output:

No