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: 'I think the fairest thing would be that you keep 1 water, 2 food, 2 firewood' 'How about I take 2 water, 2 firewood, and 2 food, and then you take the rest' 'Let's stay like this, 2 of water, 1 of food, 1 of firewood and you take the rest'
Utterance: 'I really need the water more than the rest of that stuff. I'll take 2 waters, 1 food, and 1 firewood. '
[A]: Yes


[Q]: Context: 'You drive a hard bargain. I could really use that firewood. It's going to get cold tonight and these sleeping bags are not worth the price I paid ;)' 'Haha, I know but I am in the same situation! ☹️ and since I am getting less food I feel like it is fair I get on more firewood since I truly need that 🙂' 'Some extra water for coffee might keep us warm, would you consider taking 1 food, 2 wood, 1 water?'
Utterance: 'Sure I can do that 🙂'
[A]: No


[Q]: Context: 'I don't need wood as I am usually warm so I think we can work out a deal. I like to have more water and I usually get thirsty.' 'That sounds good to me. 🙂 I think we can make a good deal.' 'I can give you 3 wood packages if I can get 3 water and 2 food. So you will receive 3 wood and 1 food. What do you think?'
Utterance: 'I would like 2 wood, 1 water and 1 food. You would get 1 wood, 2 water and 2 food.'
[A]:
No