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 would like water more than food. ' 'How many wood do you think you need?' 'I would like 2 of the firewood. What do you think? '
Utterance: 'I don't need wood as I am usually warm so I think we can work out a deal. I like to have more water and I usually get thirsty.'

SOLUTION: Yes

PROBLEM: Context: 'I need more food since I have a huge family. Can you give me all food i give you all water?' 'i need a little more food because i forgot that we where staying longer and i forgot some of my food. Can i give you 1 food package please? '
Utterance: 'Food is what I need most. I can not survive with less than 2 food'

SOLUTION: No

PROBLEM: Context: 'hi there🙂' 'Hello, I hope we can reach a good deal. I am in desperate need of firewoood and water'
Utterance: 'I also need water.  You would not believe how much my family and I sweat!'

SOLUTION:
Yes