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: 'Hello - I would love be able to split some supplies with you🙂. I could use some extra firewood so maybe i could take 3 and maybe you could have some extra food? ' 'Maybe I could take 2 firewood 2 food and 0 waters?' 'I was planning on staying up all night and keeping my fire going all night. Honestly I could give you all the extra food if that helps you if I could please have the 3 firewood? We could split the waters'
Utterance: 'I'll only give you all the firewood if you give me everything else. I know it's your top priority😮'
Example Output: No

Example Input: Context: 'Firewood is not overly interesting to me, but water is somewhat enticing.' 'Ok, great - I can give you all of my waters in exchange for a majority of the food and half of firewood' 'Half of firewood? There are 3 so one of us has to get more. I would need more of that. '
Utterance: 'Yep, I know there's three and no way to split evenly lol - can you give me a justifiable reason as to why you deserve more over me? Please convince me.'
Example Output: No

Example Input: Context: 'How about I take all the water and firewood, you can have all the food.'
Utterance: 'I need water and firewood. I don't need as much food. I need water for my dog and firewood for warmth since I am camping during the winter'
Example Output:
Yes