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 might be able to get by with just two... I'm on a diet though, so I don't need as much food.' 'That's a relief. I actually have a friend joining me and they don't have their own food supply. I don't have enough for two people.' 'You can all the food if you need it.🙂'
Utterance: 'Thanks!🙂 Do you need any water packages?'

SOLUTION: No

PROBLEM: Context: 'Good morning! Are you excited to go camping this weekend?' 'Yes, how about you! We are headed to Joshua Tree NP to do some rock climbing and hiking. '
Utterance: 'Ooh rock climbing! I'm definitely scared of heights, so that's out for me. I'm heading to the Puget Sound to camp near the ocean.'

SOLUTION: No

PROBLEM: Context: 'hi how are you' 'I am well, thank you.  Yourself?' 'good here, I will need 3 water as I need it to survive'
Utterance: 'I need water as well.  I require it for subsistence'

SOLUTION:
Yes