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: 'What kind of items do you need?  I especially need water because I would like to do extra hiking and would need to hydrate.  ' 'I need all three, but need food the most' 'I would give you all of the additional food if you gave me all of the additional water. '
Utterance: 'That sounds like a deal'

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: 'hello how are you' 'i'm good thank you, How are you doing today?'
Utterance: 'I am good, let's plan our camping trips. I am diabetes, so water is very important to me. what about you?'

Ex Output:

Yes