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: 'Can you spare some water? I need to take medication and I have run out.' 'Hi there, that sounds important. Yes, we can make sure you get some water. How does 1 package sound?'
Utterance: 'I'd rather have 2, can give you all of my food for all of your water?'
Example Output: No

Example Input: Context: 'Hello, I'm having a wonderful day.🙂 Thanks for asking. I hope yours is a wonderful day as well. I would like 2 firewood, 2 water, and 1 food. How about you?' 'Glad to hear it! I am really looking to get extra firewood, so I would like to make a compromise. If I gave you all the food, could I have more firewood?' 'I like watching the camp fire all night. What is your reason for needing more firewood?'
Utterance: 'That does sound very nice. I would like more in order to stay warm, and for cooking some delicious food.'
Example Output: Yes

Example Input: Context: 'Oh, well that's really nice of you. What do you propose?' 'You'll get 3 food and 2 water, and I'll take 3 firewood and 1 water. 🙂' 'Hmm, I think that could definitely work! Appreciate it 🙂'
Utterance: 'Sound great 🙂'
Example Output:
No