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! I would like more packages of food the most. What are you looking for?' 'I would need water the most as I forgot to bring enough. I can give you all my food for all of you water, if you'd like?' 'That would be amazing! So I could take all 3 packages of the food and you could have all 3 packages of the water. Now, we just need to split the firewood. Could I take 2 of the firewood leaving you with 1? I think I would need more for cooking the food. '
Utterance: 'Awesome! That does sound like a deal. I wish we had more firewood to split because I am afraid it might get cold.'
[EX A]: Yes

[EX Q]: Context: 'Same here. My kids are really looking forward to this. What is most important to you?' 'Firewood! I need it to cook my food and also to stay warm. What about you?' 'That is the same for me as well. My kids were really looking forward to making s'mores and telling stories by the campfire. That's all they've been talking about'
Utterance: 'Awesome, I'd be happy to negotiate that. What is your second most needed item?'
[EX A]: No

[EX Q]: Context: 'Hello, how are you doing?' 'I’m doing fine. How about you?'
Utterance: 'I'm doing well. I was hoping I could have the extra firewood because my group decided to camp for a few extra days and want to make sure we have enough'
[EX A]:
Yes