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: 'Hi there! I can't wait to go camping! How about you?' 'I am sooooo excited too! I can't wait to sit by the fire! 🙂'
Utterance: 'Me too!!!! That is what I am most excited about. I was actually hoping you might have some firewood to spare?'
Example Output: Yes

Example Input: Context: 'Hello I would like to have two bottles of water and in trade will take 1 food and firewood for a higher amount of water.' 'Hello. I would consider giving you 2 waters for 3 firewood and 2 food. I have a large family so the additional firewood will help with warmth and cooking food. 🙂' 'That sounds like you could  really use the extra warmth for your family'
Utterance: 'Yes it is very much needed. My family doesn't have a lot of extra bedding so having the warmth of a fire will help make sure we don't get cold at night 🙂'
Example Output: Yes

Example Input: Context: 'hello' 'I have brought my sons and a few of their friends so my group is larger. Will this deal work for you?' 'Hello, well what do you think its the most important for you? i would like to take the food as my important and i can get 2 of that. and then you can get your most important and you can get the 2 firewood'
Utterance: 'Well, To be honest I plan to take the boys hiking. It's a long walk so we will need to stay hydrated. So water has to be (2) Firewood is definitely important to us, but I'm not sure we can get by on just (1) food'
Example Output:
Yes