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: 'Hello, I would like to take all of the firewood and two of the water packages. You can take all of the food and the other water package. ' 'I am not a fan of that deal'
Utterance: 'That's alright. Do you have anything you need in particular? '

SOLUTION: No

PROBLEM: Context: 'All my girls have brought canteens. I must have enough firewood if they will earn their badge. You can have one, but I won't be able to make due without 2.' 'I could manage with one firewood and two foods, but if you have canteens for everyone, may I then have all three waters? I had planned to collect water from the river, but I'm worried I may get sick.' 'you pointed out that we will need more!  😮 i will take 2 waters'
Utterance: 'I didn't know you had supplied everyone with water before the trip. I was merely trying to look out for your needs, but you said you didn't need them!'

SOLUTION: No

PROBLEM: Context: 'That's great! Can I offer 2 packages of firewood in exchange for 2 packs of food?' 'Yes, that sounds good to me!' 'How about water? do you need? I can offer 2 of these for 1 pack of food'
Utterance: 'I have plenty of water right now, but need at least 1 pack of food for myself.'

SOLUTION:
Yes

