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: 'I'm doing great. How about you.?' 'Really good.' 'Which option you would like to go for?'
Utterance: 'I am most interested in the firewood.  How about I take 2 firewood 1 food and 2 water'

SOLUTION: No

PROBLEM: Context: 'Hi! I really need water also. I'm trying out a few new recipes, and they call for a lot of water.' 'Okay, maybe we can split the water and then divy up the rest. What else are you interested in?' 'I was hoping for a decent amount of food, just in case my new recipes don't work out, lol. 🙂'
Utterance: 'Haha, makes sense. I'm also interested in food. What if I take 2 waters and 1 food, and you take 1 water and 2 food?'

SOLUTION:
Yes

