TASK DEFINITION: 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.
PROBLEM: Context: 'Yah we have a few things planned. One of the things they are looking forward to is reading scary stories by the campfire and making s'mores' 'That sounds like a lot of fun. What do you think you will need for that experience?' 'We likely need a lot of firewood and some water to put out the fire when we are done lol. What are you thinking?'
Utterance: 'Yea, I'm not too into firewood because it will be quite hot when I make my camping trip. I could definitely use some more food just in case of an emergency out there.'

SOLUTION: Yes

PROBLEM: Context: 'no its not i give you i water i get 1 food and 1 firewood' 'We only have 3 of each to divide up.. so yes, you're going to have to give me one more on an item.. but in exchange I'm giving you 1 more on two different items.  I'm getting 4 items in total, you're getting 5.. - You're essentially netting 11% more 'items' than I am in this deal. ' 'thats the point as you need water so badly'
Utterance: 'Correct.. I do.. but if you're not willing to budge on this where you're still netting more overall value I understand - I'm bummed but I understand.'

SOLUTION: No

PROBLEM: Context: 'I haven't got too the site yet but I am almost there.  I can't wait to finally relax!  I have been going nonstop for days.  Good idea to check supplies!' '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...'
Utterance: 'Of course, it's always wise to bring things. We absolutely need water and some food. Water is critical though.'

SOLUTION:
Yes

