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.
--------
Question: Context: 
Utterance: 'Hello. '

Answer: No


Question: Context: 'I could do one firewood and all the food?' 'And I would get all the water?' 'How about you get two firewoods and two water, and I take the rest?'
Utterance: 'No I think I need all the water. I'm in the desert and there's absolutely no water supply. '

Answer: Yes


Question: Context: 'What is your take?' 'And you will get 2 food, 1 water and 1 firewood? I think it is a great deal since food is hard to find in the camp site. I don't think you want to go hunting🙂' '🙂🙂 Sure, seems like we have a deal?'
Utterance: 'sounds good, my friend'

Answer:
No