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: 'Aww I'm sorry to hear that, it sounds like it might be better to have her bring her own food. I'll be bringing my teenage son so it would be awesome to get any extra food for him that I can. You know how they be! 🙂' 'What about I take 2 of the packages and you take 1? I know teenagers also drink a lot of water haha 🙂' 'He definitely does drink a lot of water, but he's in a growth spurt so 2 would be ideal. I'm happy to give up all firewood in exchange for the extra food!'
Utterance: 'okay that sounds like a better deal then! I will take all the firewood and 1 food, and you can take the 2 food packages'

Ex Output:
No


Ex Input:
Context: 
Utterance: 'Hello! I would like make a deal with you on firewood, water and food! Are you interested in any items ?'

Ex Output:
No


Ex Input:
Context: 'I don't want to be too hungry either but I think perhaps I might need an extra water to compensate for the lack of food.' 'Since I am giving you all of the firewood that you said was most important to you, I feel I should get at least the same amount of items as you, especially since you are getting exactly the firewood you want. I will need to stick to three waters and two food.' 'The firewood is most important to me to be sure. However, if you get more food and all of the water I could end up going hungry.☹️'
Utterance: 'Well I would be happy to exchange you one of your firewood for the one water you need. That way you won't go thirsty.'

Ex Output:

No


