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! What camping supplies are you looking for the most?' 'Hello! I would like more packages of food the most. What are you looking for?'
Utterance: 'I would need water the most as I forgot to bring enough. I can give you all my food for all of you water, if you'd like?'

Ex Output:
Yes


Ex Input:
Context: 'I could really use some extra firewood!' 'So could I. How about we split the firewood?' 'How about I take 2 firewood but you can have 2 waters? Water is pretty important and I have a little extra.'
Utterance: 'That sounds fair.'

Ex Output:
No


Ex Input:
Context: 
Utterance: 'What is it that you really need on this camping trip?'

Ex Output:

No