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.

Ex Input:
Context: 'okay friend you can have 3 firewood and 3 water is that good enough?' 'I am going to need some food of course. ' 'yes ofcourse i agree with you.my dear friend will you have 1 food 3 firewood and 3 water'
Utterance: 'I would prefer 2 food and less firewood. There is tons of firewood where I am but there is no lake so I can't fish. No berries around here either. It's pretty scarce'

Ex Output:
Yes


Ex Input:
Context: 'Hello! How are you doing today?' 'I am doing great' 'Great! For our camping trip, I would love to take all the water and firewood. You can have all the food. '
Utterance: 'I really need the firewood,  It gets very very cold at night where I go camping.'

Ex Output:
Yes


Ex Input:
Context: 'I would like all 3 packages of firewood and 1 package of food. You can have the rest.' 'Well, I would like at least one firewood, it is the thing I most need.' 'But you need firewood for leisure, whereas I need firewood for survival.'
Utterance: 'Well it will keep us warm at night, too. I am very keen on at least one firewood for myself. '

Ex Output:

Yes


