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.

Example Input: Context: 'Wish it was an easy car ride. We're miles and miles from a store and it's getting dark. I don't do well driving in the dark. I think we might be getting close to agreement. As I understand it: you would get 1 water, 2 firewood and 2 food portions? Is that correct?' 'Actually, I suggested that you would get 1 water, 1 firewood and 1 food portion. I can compromise with you though. I would like 2 water portions, 1 firewood and 1 food.' 'Since I arrived with no water at all, I would definitely need at least 2 waters. I'm afraid I don't have a lot of "wiggle room" with that. I'm open for the other supplies. Ideally, I would like to have 2 waters, 1 firewood and 1 food portion.'
Utterance: 'If that's the case, I would like 1 water, 3 firewood and 3 food portions.'
Example Output: No

Example Input: Context: 'Hmm. Maybe we could go out together on a run. 🙂Always nice to have a running partner. So maybe on the water you get 2, me 1. Then on the Firewood the opposite?' 'That would be fun! I feel like I always do better when I have someone to run against. Competition does me good. That sounds fantastic on the fire wood and water split. What is your food situation looking like??' 'How about this? 2 for you and 1 for me. Going low carb and mostly brought my own. What do you think? '
Utterance: 'That sounds great! I don't think my chances for catching any fish are pretty slim!'
Example Output: No

Example Input: Context: '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?' '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 '
Utterance: 'Thank you for the offer on firewood. I think that sounds fair. However, I really would like at least 2 waters as well. '
Example Output:
No