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: 'Okay. I'm willing to give in on the firewood, but I really can't give in on the water or the food. As a diabetic I have to put my health first. ' 'I can give out the food in exchange for the firewood' 'Okay. I need all of the water, if you're getting the firewood. '
Utterance: 'I can't give out all the water. I need to be hydrated as well. '

SOLUTION: Yes

PROBLEM: Context: 'Hello 🙂' 'Hello to you!' 'Food is the most important item for me because the food I brought has spoiled! Which item do you need the most?'
Utterance: 'I need water above all else.'

SOLUTION: No

PROBLEM: Context: 'hi! i would love to take my kids camping to teach them about the outdoors, to do this how about i take all of the food and 2 of the waters, you can have the rest ' 'Hello there.  That deal most definitely will not work for me. ' 'OK, If i take all 3 of the foods and 1 of the waters you can have the remaining packages '
Utterance: 'I need to eat too, especially if I want to go on a long hike.  How about I take 2 foods, 2 waters, and 1 firewood? '

SOLUTION:
Yes