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'm going to need some extra wood because I'm somewhat injured and can't really gather more.' 'Oh, I see. Well, I personally need lots of water to stay hydrated since I drank a lot already.' 'Yes, that's important. I don't need much.'
Utterance: 'The thing I need less, but still sort of want some of, is food.'

Output: Yes


Input: Consider Input: Context: 'Hi, how are you, ready for the big camping trip?!' 'Yep.  I am excited.  I could really use the decompression and time away from society. ' 'I agree, can't wait to unplug. As far as supplies go, I think its going to be hot and sunny where I'm going, wouldn't mind a bunch of extra water.'
Utterance: 'Water is extremely important to me too.  I can give you 2 waters if you give me all 3 firewoods. '

Output: Yes


Input: Consider Input: Context: 'I have some stuff, but I really need a decent amount of firewood. Gets really cold at night where we camp' 'I am fine with the cold although I might need some to set up the fire. I have a baby with me so I might need to heat up the milk or food. ' 'Oh, I see. How about 2 firewood for you and 2 food. I keep the rest'
Utterance: 'I don't really need food. I can do it with 1 firewood so you can get the rest. But I really need water. We are going hiking and drink a lot.'


Output: Yes


