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: 'Hello' 'Hi there.. how are you doing today?  I hope well!  🙂  So, it looks like we need to divy up these supplies, huh?  Do you have any thoughts on the issue?'
Utterance: 'I'm doing fine thank you, how about you? Well for my trip I'm most interesting in socializing so a great campfire a night would be great, I'd prefer not to boil water either so want extra of that too. Food less so as I will go fishing and know wild vegetables, fruits and mushrooms I can pick. How about you?'

SOLUTION: Yes

PROBLEM: Context: 'TO THE FOOD DEAL IN THE HIGH PIRORITY COMPLEX COMPOUND AND THE WATER IN THE MEDIUM COMPOUND AND THE FIREWOOD IS THE LOW COMPOUND'
Utterance: 'I want all the firewood and all the water please. 🙂'

SOLUTION: No

PROBLEM: Context: 
Utterance: 'Hello partner  How are you today?'

SOLUTION:
No