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.

[Q]: Context: 
Utterance: 'Hello, great to see a fellow camper.  Planing on doing any hikes.  My family and mother-in-law are down getting some new trail maps.  We are looking forward to the long camping weekend.  Our bad luck was the airline loss two of our bags that had our food and water.  So i am hoping to get some more.🙂'
[A]: Yes


[Q]: Context: 'That sounds good but I need two foods please.' 'Hmm. :( How about I get 2 food and you get 1? That way it'll be slightly more equal' 'Since you are getting two firewoods I need two foods Let's deal on this.'
Utterance: 'Ok. Then how about I get two waters. I need the food, too. I got four mouths to feed. '
[A]: No


[Q]: Context: 'We already have more food than we need due to the extra people who brought more food than we'll eat. Plus, we're near a fresh water supply. And there's so much snow, it's insane🙂I need all the firewood. ' 'all the firewood will not work for me.okay you can have 2 firewood while i get 1 firewood,3 waterand 3 food' 'Are you near the woods? '
Utterance: 'NO.That is why i will be needing at least 2 firewood so i can keep warm'
[A]:
Yes