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 really need water and food. we did not get enough of those.' 'Those are my priorities as well, how about you get all the food and two firewoods, and i get all the water and one firewood, does that sound fair?' 'i would prefer water instead of food if possible, but i am sure we can work it out.'
Utterance: 'water is really important for me, how about i get two waters and three firewoods and you get three foods and one water?'

A: Yes
****
Q: Context: 'Nice. Same, it's over 100 degrees where I live. 🙂' 'Yikes! It's a bit colder up here, that's why I would like to bring some extra firewood to stay warm at night.' 'Oh, I see what you did there. No problem I have plenty of firewood for you buddy. 🙂'
Utterance: 'Great! What extra supplies would you like to bring?'

A: No
****
Q: Context: 'How many family members do you have? ' 'Me, my wife and our two kids.' 'I could use 1 package of firewood if your family has other heating options like a butane food cooker.'
Utterance: 'I'm sorry, we really don't have any other options. I could really use 3 packages of firewood--I just can't risk a cold weather injury. Plus I promised everyone we'd be doing things the old fashioned way.'

A:
Yes
****