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.

Input: Consider Input: Context: 'My friend ended up having a medical emergency and couldn't go to the store when I asked her to get food. Because of that, I would like 3 food packages. I had to go help her with the medical forms and didn't have time to shop' 'Yes I can give you the three food but I need 2 water. I can become very thirsty. ' 'Yes that is totally fine with me. What about firewood'
Utterance: 'I can give you 1 of the firewood. I would like to stay warm at night so I want 2. 😮'

Output: Yes


Input: Consider Input: Context: 'It's nice to know the firewood is not important to your camping trip. I'm glad I can have all the firewood to myself. How do we get to share the other resources. ' 'Actually, I think I may need more food than water. How about I take the food and we can split the water. You may have 2 waters, if you need them.' 'Sure then. You can take all the food. It's not really a priority to me. '
Utterance: 'Great. So if I have three food and one water, you can have three firewood and two water. Would that work for your trip?'

Output: No


Input: Consider Input: Context: 'i would prefer water instead of food if possible, but i am sure we can work it out.' 'water is really important for me, how about i get two waters and three firewoods and you get three foods and one water?' 'i can work with 1 water 3 food and 1 firewood'
Utterance: 'ok that works for me'


Output: No