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: 'Yes definitely! It is a pain for sure, but I love camping so I still want to go! I just have to make sure I have all the supplies I need. ' 'I can do without extra water as long as I have food and firewood to purify water I find.  It might be better for you to have a reliable supply though.' 'That totally makes sense! I actually am good on firewood thankfully, I got some from a person selling it from their yard a little bit ago.'
Utterance: 'I would have been able to bring more with me by getting some from my parents, but my father decided he wanted to get rid of what he had left and so has been enjoying his fire pit a lot lately.'
Example Output: Yes

Example Input: Context: 'Yes, and I'll get 1 package of food and all of the firewood.' 'Okay I think this might be a good deal. ' 'Actually, I've just thought about it and I'd also like one package of water. I think it'd be fair being that you're getting 2 packages of food.'
Utterance: 'Which means? Did you mean that I would take 2 packages of food and 2 packages of water? Then I will ask for one package of fire wood.'
Example Output: No

Example Input: Context: 'you are right we both need the wood, how about i give 1 wood, all of my water and 2 food and you give 2 wood and 1 food?' 'Where are you camping? Perhaps we can compromise by having our tents nearby each other, which would be like we each get three firewood? I am not willing to trade my package of marshmallows, though.' 'i hope we can come to a compromise 🙂, what is another priority of yours besides the wood?'
Utterance: 'Food is a second priority for me, as I will be metal-detecting as well, & cannot risk fainting from the heat. How about I give you two firewood (I don't think we can "share", haha), you can give me two food packages, and two water packages.'
Example Output:
Yes

