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: 'Hi - I'm so excited for our camping trip.  I'm most excited about getting to eat food that I normally don't when I am home' 'Ooh what kind of food?! Like MRE? I'm going to need lots of water because I'm going to the High Desert.' 'Hello! camper, how are you? I need us to make a deal where we all benefit.'
Utterance: 'Yes, I expect that! You need food most and I need water, so let's propose an exact trade? 3 for 3?'

Ex Output:
No


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: 'hi' 'hi there! ready to go hiking? Where will you be going, I'll be going to NY, the Catskills mountains.'
Utterance: 'yes im ready rocky mountains '

Ex Output:

No