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: 'Same! I'm a little worried about some of my supplies though. What about you?' 'Likewise! What are you most in need of?' 'Well, I'm camping up on a snowy mountain and I gave some of my food away to hikers who were passing me and were very tired and hungry, so I'd really like to get some more food. Firewood would be useful too, although I do have a thick coat and a sleeping bag. I plan on melting the snow to get water, so I don't think I'll need that too much. And you?'
Utterance: 'I have the same needs. I have a low metabolism, so I need food and firewood to keep me warm and energized. Water I plan on filtering elsewhere.'
Example Output: Yes

Example Input: Context: 'That would be amazing! So I could take all 3 packages of the food and you could have all 3 packages of the water. Now, we just need to split the firewood. Could I take 2 of the firewood leaving you with 1? I think I would need more for cooking the food. ' 'Awesome! That does sound like a deal. I wish we had more firewood to split because I am afraid it might get cold.' 'I agree. I am feeling generous and I did buy a new axe for this camping trip. So, I could stick to the prior agreement and just work a little harder to find some dry trees to chop.'
Utterance: 'I appreciate your generosity 🙂 I think that bringing your axe would be a great idea! Also be sure to pack warm clothes and extra blankets! I'm sure we will both be fine'
Example Output: No

Example Input: Context: 'I was thinking I will take all the food and water. You can have the firewood. ' 'that's not going to work for me. I need to keep at least 2 foods and 1 firewood but you can have all the water.' 'Are you most interested in the food? 😮'
Utterance: 'yeah I didn't pack enough for my trip, so I'm a little worried about my supplies.'
Example Output:
Yes