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 Input:
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 Output:
No

Ex Input:
Context: 'Would I be able to take 2 firewood and 3 waters and then you take the res?' 'Yes' 'It sounds like we are going to have a really good weekend! I'm pumped up! We'll have enough firewood to keep warm, lots of water, and food as well!'
Utterance: 'Excellent'

Ex Output:
No

Ex Input:
Context: 'I see. Which resource do you desire most?' 'Well I was thinking you could get all the extra firewood and work on the group meal and bonfire for friday night' 'I like the sound of getting the firewood, but I can't just accept no food or water.'
Utterance: 'I'll give you one of the extra food so you have a little extra to cook for everyone but I'm really gonna need all that extra water, it's going to be really hot this weekend and the folks at the capsite get to sit in the shade all day'

Ex Output:
Yes