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 think the fairest thing would be that you keep 1 water, 2 food, 2 firewood' 'How about I take 2 water, 2 firewood, and 2 food, and then you take the rest' 'Let's stay like this, 2 of water, 1 of food, 1 of firewood and you take the rest'
Utterance: 'I really need the water more than the rest of that stuff. I'll take 2 waters, 1 food, and 1 firewood. '

SOLUTION: Yes

PROBLEM: Context: 'Firewood, how about you?' 'Oh, firewood as well! It's not a camping trip if you run out of firewood in just a few nights! I would hate to be cold ' 'I was thinking S’mores!  I will start off....2 firewood, 2 water, 1 food'
Utterance: 'I was thinking smores too! Well I can settle for 1 firewood, but I think I would need more food to keep busy. How about (for me to recieve): 1 firewood, 3 food, 1 water?'

SOLUTION: Yes

PROBLEM: Context: 'Hi we would like you to consider giving us all of the rations for the trip.'
Utterance: 'hello, that could be a good idea, but I think I need more rations'

SOLUTION:
No