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.
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Question: Context: 
Utterance: 'Hello, I would like to have three packages of food. We've decided to stay an extra night but need more food to do so.'

Answer: Yes


Question: 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'

Answer: No


Question: Context: 'I am fine . How about you?' 'I am doing well so far. 🙂 What items are of preference for you today?' 'I need a lot of food today. I was advised to eat at least 4 times a day so i may need all the food packages.'
Utterance: 'Well that is not going to work well for my family of 8 now is it? Haha. I think we can come to some sort of agreement though.🙂'

Answer:
Yes