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: 'I know this isn't your problem, but I'm a student and I had to come up here to take photos of the night sky for my astronomy class. I slept really late today as I have to sit up all night to get the different stars, and possibly even the space station if it's clear enough out. I have to sit by a fire to stay warm so I can get these pictures to hand in to my professor tomorrow.' 'You know that is very impressive. I admire your determination and effort you put into your class. You must be very passionate about astronomy.' 'I am. My favorite personality is Neil DeGrasse Tyson. He's amazing, funny and incredibly smart. I'm hoping to get an internship at the Planetarium in my senior year 🙂'
Utterance: 'That's amazing!!! So here is the deal...I'll give you the 2 firewood packages so you can sleep under the stars tonight. In return I'll have to keep 2 water packages and 2 food packages since I won't be able to cook all of this fish and I still have a family to feed. '

A: Yes
****
Q: Context: 'Hello! What camping supplies are you looking for the most?' 'Hello! I would like more packages of food the most. What are you looking for?'
Utterance: 'I would need water the most as I forgot to bring enough. I can give you all my food for all of you water, if you'd like?'

A: Yes
****
Q: Context: 'Hello, I would like to keep the 3 extra packages of firewood an 2 extra packages of water. You can have all 3 packages of water and 1 package of food.' 'That's just too big of an ask. How about I get 3 firewood and 1 water and you can have the rest' 'I really need the extra firewood. I hiked 5 miles o this camping spot and I need the extra firewood to stay warm and to keep the wild animals away at night.'
Utterance: 'I really need some of the firewood too. I am expecting a big group of people to attend, and I can really use it. it gets really cold at night where we camp. What do you suggest is a more fair deal to the both of us?'

A:
Yes
****