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: 'I would give you all of the additional food if you gave me all of the additional water. ' 'That sounds like a deal' 'Shall we divide the firewood two to one? '
Utterance: 'sure as long as I am getting two wood.   It gets very cold at night where I go camping'

Ex Output:
Yes


Ex Input:
Context: 'yes ofcourse i agree with you.my dear friend will you have 1 food 3 firewood and 3 water' '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' 'okay is 2 food 1 firewood okay for you while i get 1 food 2 firewood and 3 water'
Utterance: 'I'm going to need some water as well. How about 2 food, 2 water and 0 firewood for me?'

Ex Output:
Yes


Ex Input:
Context: 'Hi, how is your trip going? hopefully better than mine' 'My trip is going pretty so so too  im sorry to hear that about yours!! sounds like we both are gonna need some extra stuff? I was wondering if we could start with the water? any chance i could have it all and you can have all of something else? thoughts? im open to discussion'
Utterance: 'I am actually very much in need of water. I fell while I was hiking during this trip. I have a really bad wound I need to clean on my leg. '

Ex Output:

Yes