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 how are you?  I need the food the most because I ran off and left mine sitting on my kitchen counter.  I think we can agree upon you having 2 water but I need 2 food' 'I'm going hiking, and I really need food, it works up an appetite.' 'Well I didn''t bring any with me so I really need two.  I am willing to give you 2 waters.🙂'
Utterance: 'I also need the water, because it's not safe to drink from streams here.  '

SOLUTION: Yes

PROBLEM: Context: 'well i do need alot of firewood since i need it to start a fire' 'Okay, so you can take all the firewood and I take all the food. I will also need at least two waters because I had a limited supply at home.🙂' 'no, i will need 2 water because i need to drink it and there not much water around me'
Utterance: 'Please work with me. I will need plenty water to make it to the top of the mountain.'

SOLUTION: Yes

PROBLEM: Context: 'It sounds like we are going to have a really good weekend!  I'm pumped up!  We'll have enough firewood to keep warm, lots of water, and food as well!' 'Excellent' 'Thanks for coming along!  I'm glad we are going to have plenty of supplies.'
Utterance: 'Great'

SOLUTION:
No