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.

Example Input: Context: 'Hello!🙂'
Utterance: 'Hello, how are you?'
Example Output: No

Example Input: Context: 'Hello, what do you expect from me?' 'Hi! I'm really excited for the camping trip, but I guess can we talk about it first? I don't think we're supposed to rush into a decision.'
Utterance: 'Okay, What did you thing about the camping trip?'
Example Output: No

Example Input: Context: 'Hello. 🙂 What item did you need a little extra of?' 'Thank you for asking, I would really like some extra fire wood as I usually get cold and scared at night so I can keep a fire going.' 'I'd be willing to give you all my firewood if you could give me all the water.'
Utterance: 'I do need at least one extra water bottle in case the fire goes out of control, but I am willing to forgo any food as I can forage for food.'
Example Output:
Yes