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: 
Utterance: 'Hello '

Ex Output:
No


Ex Input:
Context: 'Well, I do need some of each, what about I take 3 food and 1 each of the other two?' 'I don't mind taking 2 of the water as I need it for a medical condition and 2 firewood however I would like to get 1 of the food.' 'You need water the most?'
Utterance: 'I am constantly thirsty and having water on hand is needed. Why is gathering food an issue for you?'

Ex Output:
Yes


Ex Input:
Context: 'I'd be ok with keeping all the food. I do eat a bit too much and if for some reason I get lost it would be helpful to have!' 'I agree with that, so you would get the two water and three food and I would get one water and three firewood?' 'Yeah. If that's alright with you? It rained here recently but I bought a top of the line tent and sleeping bag so if I do run out of firewood I'll still be ok.'
Utterance: 'Yes, I'm glad we could come to an agreement, I will submit the deal now.'

Ex Output:

No


