TASK DEFINITION: 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.
PROBLEM: Context: 'Oh that's cool! I will be camping with my 4 children so having a little extra would be great for me too.' 'Ok great! Do you need firewood?' 'I could use a little to cook with, But food is my main concern. Is it hot where you will be? '
Utterance: 'Ya so I could use a lot of water! Would you be willing for me to take one food two water and two firewood? '

SOLUTION: Yes

PROBLEM: Context: 'Haha yup me too. I have a teenage son who eats about 5000 calories a day. Okay, I think the most fair option is one of takes 2 firewood and 1 of the other two items. I don't care who.' 'Sure. How about you take 2 firewood, and 1 food and 1 water?' 'That's fine with me. This should be a great weekend to get out.'
Utterance: 'yes sounds good! hope it doesn't rain'

SOLUTION: No

PROBLEM: Context: 'Same here haha. Is water your lowest priority item too?' 'Yes. We think we have enough water for now.' 'Same here! I am in need of food more than firewood however as I am very hungry. '
Utterance: 'Me too. We have a bigger family and we will run out of food if we don't get some more.'

SOLUTION:
Yes

