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: '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?'
Utterance: '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.'

A: Yes
****
Q: Context: 'sounds good. but how much firewood will i get ? because i don't need it much' 'Do you want to trade firewood for food?' 'yeah, am trying to make trade but not for firewood, for water !☹️'
Utterance: 'I only need water right now. so is the 2 water, 1 firewood ,and 1 food package still good ?'

A: Yes
****
Q: Context: 'But I agreed to give you all the food. Now that you want two waters, I think I should have some food because I left a bag of my food at home. You get two waters and I get one of the food. Then you get the majority of both the water and food.' 'So I get 2 waters/2 food/0 firewood, and you get 1 water/1 food/3 firewood? I think that works for me.' 'Yes, that's the plan. By the way, what do you need all that food for? You didn't say. I'm just curious.'
Utterance: 'I'm a bigger guy (6'3") so I eat a lot, especially after activities like hiking and kayaking. Same reason I want water really.'

A:
Yes
****
