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.

[Q]: Context: 'I understand that, but walking away with the most food and the most water would essentially leave me for dead lol. Do you prefer water or food? ' 'I prefer to have the most water as I have a medical condition that requires me to stay extremely hydrated at all times. If I get too dehydrated, it's extremely bad for me. How about I get 3 water and 1 food, and 2 firewood?' 'I'll give you the 3 water, 1 firewood. How about I get 3 food and 2 firewood? I'll need the fire to cook my food.'
Utterance: 'I would need firewood to cook my food as well. I would like the 3 water, 1 food, and 1 firewood, what about that? '
[A]: Yes


[Q]: Context: 'Can I get 3 water and 1 firewood instead?' 'so I get 2 firewood, and 3 food? Ok I will agree to that' 'Great! Sounds like a deal! we have enough food for tonight so I think we will be good. '
Utterance: 'awesome! enjoy your trip'
[A]: No


[Q]: Context: 'Hi there.. we're looking forward to this camping trip.. hope you are, too!  Is there anything in particular you guys need / want out of the extra stockpile we've got?' 'Hello! Which item do you need the most?' 'Well we actually really NEED all three items.. but I know you might, too - so I want to make a deal that's fair for you.. is there anything in particular your family needs for the trip?'
Utterance: 'Well, there has to be an item that you need the most. If you tell me what you need the most, we can try to make a deal around it.'
[A]:
No