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.

Ex Input:
Context: 'Hello, I would like to take all of the firewood and two of the water packages. You can take all of the food and the other water package. ' 'I am not a fan of that deal'
Utterance: 'That's alright. Do you have anything you need in particular? '

Ex Output:
No


Ex Input:
Context: 'Uh oh. What are you preferences on supplies?' 'food, then water, then firewood, and yours?' 'water, food then firewood. It's really hot so I need to make sure we are hydrated. We forgot a bag of supplies that had mostly food so we really could use food. It's hot so firewood isn't necessary. If anything we can get it from around or on a hike.'
Utterance: 'of course, we should help one another, we will figure something out i'm sure'

Ex Output:
No


Ex Input:
Context: 'Fine.' 'You aren't very talkative are you? What preferences do you have for packages?😮😮😮' 'I would really like 2 water and 2 firewood and 1 food.'
Utterance: 'I would like 3 water no firewood and 2 food. I have 8 people in my family and I have a medical condition where I can only drink water and have to drink 100 ounces per day.'

Ex Output:

Yes