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: 'That could work, were not really looking to have a big fire' 'Where do you stand on water? We're low , and may need extra in case the fires go out of control' 'I do need some myself as well'
Utterance: 'I suppose it is important - we'll definitely have split that up somehow. '
[EX A]: No

[EX Q]: Context: 'Hmm okay, I am willing to give you three waters! I was hoping to get 3 firewood though, as it's going to be really cold where I am going.' 'seems like we have same priority items. firewood. I also need firewood most because I am prone to pneumonia ' 'Oh no, I'm so sorry to hear that ☹️ Let me ask about the food first then, would you be willing to give me the 3 packages of that? I am going to have a lot of people with me and we won't be near any stores at all.'
Utterance: 'if i give you all the food items, will you give me the firewood?'
[EX A]: No

[EX Q]: Context: 'Hello! And happy camping! 🙂 To start off, I am thinking that I will need at least 3 firewood, 2 water and 1 food. Last time my axe broke and we ran out of wood! What do you think/need?' 'I also was really needing some firewood. It's supposed to get pretty cold at night where we are camping and I need to make sure I can keep my kids warm.' 'Hmm.. well let's see! What is your second priority? I would be willing to give up all of that, if I could get at least 2 firewood. You're right, it sure does get chilly ☹️'
Utterance: 'What if I got 3 foods and 2 waters. and you got 3 firewood and 1 water. If I could get a little more food that doesn't need to be cooked over the fire I might be able to get by. And I'll need to buy more water so I don't have to boil it since I won't have much firewood. '
[EX A]:
Yes