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: 'i have some spare cans but i am not too worried about it.  its a low prioirty for me ' 'How about your water?  Won't you be going through a lot of water where you are going?' 'i am good on that,  i dont think i will be but its second on my to do list'
Utterance: 'Are you willing to take 1 firewood and 2 waters?  I also don't need the food.'

SOLUTION: No

PROBLEM: Context: 'Ok, I have enough food, but I need firewood to keep warm and water because one of my containers leaked.  So, why don't you take all the food and I get everything else.' 'Sure, I'll agree with it!' '🙂 Ok.'
Utterance: 'I can give you 1 thing of water and 2 things of firewood'

SOLUTION: No

PROBLEM: Context: 'Sorry, that can't work for me. Is there a reason you need all the firewood and food?' 'I have health issues, and I need to keep warm at night.  And I don't know how much fish I can catch.' 'Okay, that makes sense. But I also need to keep warm.'
Utterance: 'I think I can get by with 2 firewood, and give you 1.'

SOLUTION:
No

