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 hope you are excited for the trip Im hoping we can discuss the supplies. I would like to get 2 water 1 food and 2 of the firewood '
Utterance: 'I can give you 2 waters and 1 food, but I really need more firewood. I ran out last time and I don't want to go through that again! How about you take 2 waters, 1 food, and 1 firewood? '

SOLUTION: Yes

PROBLEM: Context: 
Utterance: 'Hi:  I  have invited friends from a nearby campsite for dinner and i heard it is going to be really cold tonight. I would prefer to have some extra fire wood for sure. lly cold tonight.'

SOLUTION: Yes

PROBLEM: Context: 'Great! What do you look for most when camping?' 'Definitely water. The weather is so damn hot.' 'Water is important!! To me firewood is more important as I have anemia and I'm ALWAYS cold lol'
Utterance: 'Alright. I have a  feeling we will have a deal then. How about you give me two water for a firewood?'

SOLUTION:
No