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'
Utterance: 'hello, so what is your most important thing that you want? '

SOLUTION: No

PROBLEM: Context: 'Haha I suck at those activities as well. I don't usually don't eat a lot, so I'm happy to exchange some food supplies for water supplies. ' 'I would be willing to do that. What do you propose?' 'I get 2 water, 1 food and 1 firewood, you get 1 water, 2 food and 2 firewood. '
Utterance: 'You know what that sounds extremely fair. I would accept that offer'

SOLUTION: No

PROBLEM: Context: 'What if I got 3 foods and 2 waters. and you got 3 firewood and 1 water. If I could get a little more food that doesn't need to be cooked over the fire I might be able to get by. And I'll need to buy more water so I don't have to boil it since I won't have much firewood. ' 'I would say that sounds like a good deal! I am a little worried about water though, there aren't any sources of water where we are going. Hmm..' 'I think having 3 packages of firewood will help! you can always boil water from a fresh spring 🙂'
Utterance: 'That's true! Thank you so much for the advice, I am definitely new to this camping thing 🙂 Well I think 3 foods, 2 waters for you sounds like a good deal. Firewood will definitely be needed on our trip! 🙂'

SOLUTION:
No