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 Q]: Context: 'Great! I'll be going to the Catskills, in NY. Where are you planning on going?' 'Antarctica! I am going to need as much firewood as I can get.' 'Ha, woah that's exotic! I'll need some firewood as well, but maybe not as much as you! I'm planning on going hiking a lot, and will need some extra water, as, again, ill be hiking a lot'
Utterance: 'I will offer 3 water to you! You will maybe need more food with that much exercise? How about 2 food? I really need that extra firewood. Remember that the Catskills probably has some extra wood around.'
[EX A]: No

[EX Q]: Context: 'hi how are you' 'Hi, I am good. How about you? 🙂'
Utterance: 'same, can I get 3 food, 2 firewood and 0 water, I need 3 food because i need food to survive'
[EX A]: Yes

[EX Q]: Context: 'Oh, I see. Well, I personally need lots of water to stay hydrated since I drank a lot already.' 'Yes, that's important. I don't need much.' 'The thing I need less, but still sort of want some of, is food.'
Utterance: 'I'm like that as well, a small appetite.'
[EX A]:
Yes