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: 'I need all three of the firewood and three water.  You can have all the food.' '😮 May I ask why? I do need food, but I need some firewood as well.' 'I need firewood to cook the fish I plan to catch.  I don't really need more food, but I can use a little water too, since it's warm.'
Utterance: 'I need firewood, because I have a medical condition that causes my veins to close if I get too cold at night. I don't mind sharing the water.'

Output: Yes


Input: Consider Input: Context: 'Hello there?' 'Hi! How are you?'
Utterance: 'I am fine. How is your camping trip going?'

Output: No


Input: Consider Input: Context: 'I want all of the water, two firewood, and one food.' 'Why do you need all the water and little food?' 'I need to stay hydrated because the weather is hot. I am trying to lose weight so I do not need much food.'
Utterance: '😮I see. I have a medical condition that causes my veins to close if I get too cold. I need more firewood to make sure I don't freeze at night.'


Output: Yes


