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: 'Actually, I think I may need more food than water. How about I take the food and we can split the water. You may have 2 waters, if you need them.' 'Sure then. You can take all the food. It's not really a priority to me. ' 'Great. So if I have three food and one water, you can have three firewood and two water. Would that work for your trip?'
Utterance: 'That's perfect for my camping trip. '
[EX A]: No

[EX Q]: Context: 'Firewood, how about you?' 'Oh, firewood as well! It's not a camping trip if you run out of firewood in just a few nights! I would hate to be cold ' 'I was thinking S’mores!  I will start off....2 firewood, 2 water, 1 food'
Utterance: 'I was thinking smores too! Well I can settle for 1 firewood, but I think I would need more food to keep busy. How about (for me to recieve): 1 firewood, 3 food, 1 water?'
[EX A]: Yes

[EX Q]: Context: 'Me too.🙂' 'What are you looking for?' 'Firewood. I need 3. What do you need?'
Utterance: 'I'm looking for mostly water and food. I have some firewood, but I don't think I could trade all 3. '
[EX A]:
No