instruction:
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: 'Okay . How much You need each?' '3 Food and 1 Firewood? You get the rest?' 'That's fine.I will accept your deal.Tell me the reason why you need the item?'
Utterance: 'Food for the family, and firewood is a good tool to purify water and cook. Also wanted to make a win-win deal'
answer:
Yes


question:
Context: 'im sorry i mistyped. okay yes thats a deal. so last we have to talk about the wood. what do you think' 'Oh yes, sorry I am so caught up with my wound I completely forgot about that. I can spare 1 firewood so you would get 2, do you think you could spare another water in exchange for the wood?' 'i cant unfortunately i really need the two water im sorry. '
Utterance: 'im so sorrry unfortunately i am in dire need of two wood we are in a very cold climate'
answer:
Yes


question:
Context: 
Utterance: 'Can you help out? I can easily dehydrated can you give all the water packages to me?'
answer:

Yes