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: 'It will be nice to get out and explore the great outdoors, even if it is super hot!' 'I agree. What supplies could you use more of?' 'Water for sure, need to stay extra hydrated.  How about you?'
Utterance: 'Haha yup I had a feeling about that one. ;-) Yeah my wife has a bunch of crazy hikes planned so water is a must here too. What else?'

Ex Output:
Yes


Ex Input:
Context: 'Hi there! Are you excited about camping?' 'Hey! I sure am! The only thing is, I just learned that the canyon where I'm camping is going to be experiencing an unexpected heat wave over the next few days and I'm worried I might not be fully prepared. ☹️ What about you?' 'Same here! Last time my daughter got dehydrated and it made her sick!'
Utterance: 'That sounds awful! 😮 Where are you going to be camping?'

Ex Output:
No


Ex Input:
Context: 'Hello, I'd like to bring three packages of firewood because I'll be making tons of BBQ for the camping trip.' 'Can I get 3 packages of food?' 'What do you need it for?'
Utterance: 'I would like some extra food in case I get hungry.'

Ex Output:

Yes


