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: '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?'
Example Output: No

Example Input: Context: 'Hey!🙂 How are you? What were your plans for the weekend?' 'Hi. I'm doing great. How are you? I'm planning on going camping.🙂' 'I'm great! Me too! did you have any specific plans? I wanted to make an extra fire to cook with and cook a nice meal. '
Utterance: 'Yes. I'm actually taking a large group of people. Some friends and family are going and I kind of also wanted a bit of extra firewood. 🙂'
Example Output: Yes

Example Input: Context: 'I completely understand, I have a large family coming along, I really need the extra supplies, as for the food and firewood are you okay with the amount? ' 'i am an avid water drinker. i can afford to give you 2 water for three firewood though' 'I have alot of children, and those little rascals can chug water like there is no tomorrow, will you allow me to get the 3 waters and you can have 2 firewood and and 3 foods, what do you think?'
Utterance: 'i need the firewood because i tend to catch a cold easily and also scared of the dark. i can give you 2 water and 2 food for 3 firewood and i food'
Example Output:
Yes