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: 'C-ya, thanks anyways' 'I am glad you accepted. I really need it.' 'I will take all the food and water then'
Utterance: 'That will be very unfair of you. How am i going to survive without water or food?'

Output: Yes


Input: Consider Input: Context: 
Utterance: 'HI! Are you excited to go on this trip?'

Output: No


Input: Consider Input: Context: 'The basics of man -  food and water' 'Ah, okay, I could use some of that too! Which one do you need most?' 'water. How about you?'
Utterance: 'I could use water, too, but I'd be willing to give some up if you give me more items overall'


Output: Yes