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: 'You drive a hard bargain. I could really use that firewood. It's going to get cold tonight and these sleeping bags are not worth the price I paid ;)' 'Haha, I know but I am in the same situation! ☹️ and since I am getting less food I feel like it is fair I get on more firewood since I truly need that 🙂' 'Some extra water for coffee might keep us warm, would you consider taking 1 food, 2 wood, 1 water?'
Utterance: 'Sure I can do that 🙂'

SOLUTION: No

PROBLEM: Context: 'Hi, I am looking at extra items for my camping trip and would like to have 3 firewoods, 3 foods and 2 waters.' 'Hey, I am excited to go camping too! Would you mind sharing your top priority items with me so that we can come up with a fair deal? Ideally I would love 3 firewoods, 3 foods, and 2 waters just like you aha. But perhaps we can each get at least 3 packages of our highest priority item ' 'Hmmm, I think I really need the firewood. I brought softwoods and they burn out quickly so I don't think I'll have enough wood to keep me going through the night. I get kinda scared without the fire. What is your priority?'
Utterance: 'Okay, well firewood is also my top priority since it will be so cold tonight. But I would be willing to take only 1 firewood (and give you 2) as long as I got 2 foods and 2 waters '

SOLUTION: Yes

PROBLEM: Context: 'I really need the firewood, It gets very very cold at night where I go camping.' 'I really needed firewood also. I have brought my whole family camping which includes my 2 and 3 year old. They really need to stay warm' 'I am just going to walk away, I can't have my family freeze'
Utterance: 'I do not want my family to freeze either but walking away doesn't benefit either of us. How about I take the water and 2 firewoods, you have the rest'

SOLUTION:
Yes