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 Q]: Context: 'Yeah, I want to make sure i am prepared. What do you think are the bests options?' 'Well i would really like to have extra firewood since i am afraid of the dark and i don't need extra water so i was hoping you would want to trade that' 'Yes, I think that sounds like a good option. I personally could use more food. I like to eat. '
Utterance: 'how do you propose we split the food then?'
[EX A]: No

[EX Q]: Context: 'i suggest we put excess in charge of working on proposition because prevention of excess is not a good first step.' 'I don't know what you mean by "prevention of excess." Can you clarify?'
Utterance: 'what i mean by prevention of excess is that we should focus on getting excess and not to limit it regardless of what we already have because if we should offer some creative approaches by excess. we can both come to an agreement if you are interested.'
[EX A]: No

[EX Q]: Context: 'Hi, this is my first time camping and I want to make sure I have enough stuff.  I would like three food, three firewood, and two water.  What do you think?' 'I have been camping a few times and pretty much know what I need to be comfortable and healthy.  Warmth and hydration are important for me.  So, I am thinking 2 firewood, 2 water and 0 food.' 'Since I have never been camping before, why do you think you need 2 firewood?'
Utterance: 'Unfortunately, I have arthritis so being sure to keep warm and the dampness away in the evening, heat is important for me.'
[EX A]:
Yes