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.

Q: Context: 'The weather is going to be really hot. Could I have 2 water in exchange for you receiving 2 food and 2 firewood?' 'I have a low immune system and need to stay warm how about I get all 3 firewood in exchange for the 2 water. ' 'I will agree to 3 firewood for 2 water. Maybe I should extra food though so 2 food for me🙂'
Utterance: 'I can agree to 2 food. You get 2 and I will get 1 food. That sounds fair to me. 🙂'

A: No
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Q: Context: 'Ugh ☹️ I too could really use the firewood. We need that campfire going all night to be able to socialize. How about water? Do you have enough? Do you need more?' 'I have an idea. I could give you 3 firewood and you give me 3 water and 3 food. ' 'That would be great but I could find myself in need of some extra water. Don't want t get dehydrated from all the dancing! Could I trade you one of the firewood for 2 of the water?'
Utterance: 'I see. How about you get 2 firewood 1 water 1 food. And I get 1 firewod 2 water 2 food?'

A: No
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Q: Context: 'how do you propose we split the food then?' 'Well I don't mind either way about the food. I'll recommend giving you 2 firewood 1 food and 1 water. ' 'how about you get 3 waters and 2 foods? Does that work better?'
Utterance: 'yes how much firewood. I need at least 1 to cook the food.'

A:
Yes
****