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: 'Hello, can we make a deal?' 'Of course! Are you going camping too?' 'Yes.  I have 2 children so I was thinking that I will need extra water. 🙂'
Utterance: 'I too need extra water, but I'm willing to negotiate on the other things if you are! 🙂'
[EX A]: No

[EX Q]: Context: 'Well it's important for both of us to get that wood ! ' 'In order to get all food, can you give me additional firewood?' 'How about I do: 2 firewood, 2 food and 1 water?'
Utterance: 'Well, what would it take for you to give up extra wood? '
[EX A]: No

[EX Q]: Context: 'Hello, How is your camping experience so far 🙂' 'It's going well.  🙂  How is yours?' 'It was going great until a bear came and took all of our food 😮'
Utterance: 'Oh no, that's not good.  I still have some left over, but we're running out of firewood to use to heat it.'
[EX A]:
Yes