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' 'Hi friend. How is your day?' 'yes good, what you want?'
Utterance: 'I want a lot of water my friend. I will be hiking and what I hav is not enough'

Output: Yes


Input: Consider Input: Context: 'Hi . How is your camping trip going?'
Utterance: 'The trip is great, how about you?'

Output: No


Input: Consider Input: Context: 'OK, but first tell me why you need extra food' 'I have 10 people in my group' 'I see. I need more water because I came across some people who were lost and they are very dehydrated.'
Utterance: 'I need 2 firewood because it gets below freezing at night'


Output: Yes