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.

Ex Input:
Context: 'Hi there, how are you doing?' 'I am great. Excited to go camping. How much food do you need?' 'I could use some extra food, I'll be hosting a get-together at my campsite later and will need some to entertain the guests. I'd like 2.'
Utterance: 'That is fine. I can go fishing to get some extra food but I would still like one. Can I take two packages of firewood so I can cook them? '

Ex Output:
Yes


Ex Input:
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 '

Ex Output:
Yes


Ex Input:
Context: 'Hi! I'm very excited for the upcoming camping trip!! 🙂' 'Me too! 🙂 What do you think about the extra supplies?'
Utterance: 'I recently bought two new puppies, and they are coming on the trip. I could really use the extra water for them!'

Ex Output:

No