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: 'Hello, I think that I should get all of the water packages, 2 firewood and you can have all of the food.🙂' 'Hi there, i appreciate your initial offer. ' 'What is your offer on the additional packages?'
Utterance: 'I would be willing to give you all of the firewood (3) and two of the water (2) while I get the rest'

Output: No


Input: Consider Input: Context: 
Utterance: 'Hi!'

Output: No


Input: Consider Input: Context: 'IF I can't get 2 pieces of firewood, I will walk away' 'oh that is too bad. I feel the same way.😮' 'Sorry we could not come to a agreement, I am walking away'
Utterance: 'OK. I am sorry it has to come to this. I really need the firewood as much as you do to keep warm as it is very cold where I am for this time of the year.'


Output: Yes